- Validation of Arylphosphorothiolates as Convergent Substrates for Ar-SF 4Cl and Ar-SF 5Synthesis
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In this manuscript we describe the oxidative fluorination of aryl phosphorothiolates to access Ar-SF4Cl compounds. These compounds serve as precursors for the highly coveted Ar-SF5 compounds. The use of phosphorothiolates as starting materials permits access to Ar-SF4Cl from a wide variety of available starting materials, namely boronic acids, diazonium salts, aryl iodides, thiophenols, or simple arenes. The protocol has been demonstrated for 10 examples and showed good tolerance to various functional groups. Finally, we demonstrated that AgBF4 can be used as a fluorinating agent, affording good yields of an Ar-SF5.
- Wang, Lin,Ni, Shengyang,Cornella, Josep
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supporting information
p. 4308 - 4312
(2021/06/02)
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- Nickel-Catalyzed Difunctionalization of Alkynyl Bromides with Thiosulfonates and N -Arylthio Succinimides: A Convenient Synthesis of 1,2-Thiosulfonylethenes and 1,1-Dithioethenes
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An efficient nickel-catalyzed vicinal thiosulfonylation of 1-bromoalkynes with thiosulfonates in the presence of cesium carbonate is described. An operationally simple and highly regioselective atom transfer radical addition (ATRA) of alkynyl bromides provides a wide range of (E)-1,2-thiosulfonylethenes (α-aryl-β-thioarylvinyl sulfones) in moderate to high yields. The extensive substrate scope of both alkynyl bromides and thiosulfonates is explored with a broad range of functional groups. Indole-derived 1,1-bromoalkenes were also successfully explored in this 1,2-thiosulfonylation process. Moreover, the nickel-catalyzed geminal -dithiolation of alkynyl bromides with N -arylthio succinimides provides 1,1-dithioalkenes in high yields. The present protocol is reliable on gram scale, and a sequential one-pot bromination and thiosulfonylation of phenylacetylene is achieved in a scale-up synthesis. Following control experiments, a plausible mechanism is proposed to rationalize the experimental outcome and the vicinal thio-sulfonylation.
- Kumari, Arram Haritha,Kumar, Jangam Jagadesh,Krishna, Gamidi Rama,Reddy, Raju Jannapu
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supporting information
p. 2850 - 2864
(2021/05/18)
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- A green and efficient route for P ? S ? C bond construction using copper ferrite nanoparticles as catalyst: a TD-DFT study
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Magnetic nanoparticles of CuFe2O4 were applied as catalyst system for one-pot thiophosphate synthesis via the reaction of aryl sulfonyl chlorides with H-phosphonates under conventional heating conditions. This is an extremely efficient and green method for thiophosphate synthesis under base- and solvent-free conditions. Various thiophosphates were obtained in good to excellent yields under the optimized reaction conditions in a short time. The catalyst can be easily recycled from the reaction by an external magnetic field and reused for the next run. In this study, TD-DFT B3LYP/6-31 + G(d) calculations are in good accord with the experimental results. A comparison between experimental and theoretical UV-vis absorption spectra of the thiophosphate 3k has been carried out; and a small hypsochromic shift (only ~ 2 nm) was displayed at maximum absorption. The aim of this work is to investigate the best method and basis set for thiophosphate compounds; therefore, predictions for these compounds can be performed in theoretical studies.
- Moghaddam, Firouz Matloubi,Daneshfar, Maryam,Azaryan, Reza
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p. 311 - 315
(2020/11/02)
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- Diselenide-Mediated Catalytic Functionalization of Hydrophosphoryl Compounds
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We report a diaryldiselenide catalyst for cross-dehydrogenative nucleophilic functionalization of hydrophosphoryl compounds. The proposed organocatalytic cycle closely resembles the mechanism of the Atherton-Todd reaction, with the catalyst serving as a recyclable analogue of the halogenating agent employed in the named reaction. Phosphorus and selenium NMR studies reveal the existence of a P-Se bond intermediate, and structural analyses indicate a stereospecific reaction.
- Handoko,Benslimane, Zacharia,Arora, Paramjit S.
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supporting information
p. 5811 - 5816
(2020/07/27)
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- Accelerating Electrochemical Synthesis through Automated Flow: Efficient Synthesis of Chalcogenophosphites
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Integrated electrochemical reactors in automated flow systems have been utilised for chalcogenophosphite formations. Multiple electrochemical reactions can be performed using a programmed sequence in a fully autonomous way. Differently functionalised chal
- Amri, Nasser,Wirth, Thomas
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supporting information
p. 1894 - 1898
(2020/11/24)
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- Benign synthesis of thiophosphates, thiophosphinates and selenophosphates in neat condition using N-chalcogenoimides as the source of electrophilic sulfur/selenium
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A neat reaction protocol has been developed for synthesis of thiophosphate, thiophosphinate and selenophosphate compounds. N-chalcogenoimides have been used for chalcogenylation of P(O)H moieties of various H-phosphonates under solvent, catalyst and base free condition at room temperature in aerial atmosphere. Both S-aryl and S-alkyl phosphorothioate compounds were prepared by this method in good yields. Selenophosphates were also synthesized using N-(phenylseleno)phthalimide under solvent free condition.
- Mondal,Saha, Amit
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- Electrochemical Dehydrogenative Phosphorylation of Thiols
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We report herein a new approach for the synthesis of organothiophosphates from phosphonates and thiols through electrochemical reaction. The reactions were conducted without the addition of oxidant, transition-metal base, or base at room temperature. This
- Li, Chung-Yen,Liu, You-Chen,Li, Yi-Xuan,Reddy, Daggula Mallikarjuna,Lee, Chin-Fa
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supporting information
p. 7833 - 7836
(2019/10/11)
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- Tf2O-Promoted Activating Strategy of Phosphate Analogues: Synthesis of Mixed Phosphates and Phosphinate
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A metal-, toxic chloride reagent-free activating strategy of various phosphates has been developed. This method enables the facile synthesis of functional phosphates such as alkyl phosphates, aza phosphates, thiophosphate, and mixed diaryl phosphates. A transient phosphorylpyridin-1-ium species in situ generated from phosphates with Tf2O/pyridine readily undergoes a substitution reaction with diverse nucleophiles to form versatile phosphate compounds.
- Huang, Hai,Ash, Jeffrey,Kang, Jun Yong
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supporting information
p. 4938 - 4941
(2018/08/24)
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- Base-controlled Fe(Pc)-catalyzed aerobic oxidation of thiols for the synthesis of S-S and S-P(O) bonds
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Fe(Pc)-Catalyzed aerobic oxidation of thiols for the synthesis of disulfides has been developed under mild reaction conditions. In addition, an aerobic oxidative cross-dehydrogenative coupling (CDC) reaction of thiols with P(O)-H compounds (H-phosphonates and H-phosphine oxide) for the formation of S-P(O) bonds has been demonstrated under the Fe(Pc) catalysis system with a base additive. Control experiments revealed that the use of a base (DIPA) in this system controls the synthetic pathways in which thiophosphates are formed.
- Huang, Hai,Ash, Jeffrey,Kang, Jun Yong
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p. 4236 - 4242
(2018/06/21)
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- Reactions of Disulfides with Silyl Phosphites to Generate Thiophosphates Under Neat Conditions
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An efficient procedure for the synthesis of thiophosphates is described. Without using any metallic catalyst or base, the direct sulfur–phosphorus coupling reaction of disulfides and dialkyl trimethylsilyl phosphite (DTSP) was carried out under solvent-fr
- Zhan, Zhen,Yang, Zhongzhen,Ma, Dena,Zhang, Hao,Shi, Yuesen,Wang, Qiantao,Deng, Yong,Hai, Li,Wu, Yong
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p. 1426 - 1431
(2018/05/22)
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- Direct Aryloxylation/Alkyloxylation of Dialkyl Phosphonates for the Synthesis of Mixed Phosphonates
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A strategy for the direct functionalization strategy of inertial dialkyl phosphonates with hydroxy compounds to afford diverse mixed phosphonates with good yields and functional-group tolerance has been developed. Mechanistic investigations involving both NMR studies and DFT studies suggest that an unprecedented highly reactive PV species (phosphoryl pyridin-1-ium salt), a key intermediate for this new synthetic transformation, is generated in situ from dialkyl phosphonate in the presence of Tf2O/pyridine.
- Huang, Hai,Denne, Johanna,Yang, Chou-Hsun,Wang, Haobin,Kang, Jun Yong
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supporting information
p. 6624 - 6628
(2018/05/14)
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- Fast and transition metal-free general method for the preparation of chalcogenophosphates
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In the presence of Cs2CO3 and I2, the coupling reaction of dialkyl phosphites with dichalcogenides (S, Se and Te) proceeds efficiently and completes in several minutes under mild conditions, affording the corresponding cha
- Wang, Junxing,Wang, Xiaolong,Li, Hongjie,Yan, Jie
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- Cs2CO3-Catalyzed Aerobic Oxidative Cross-Dehydrogenative Coupling of Thiols with Phosphonates and Arenes
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An efficient Cs2CO3-catalyzed oxidative coupling of thiols with phosphonates and arenes that uses molecular oxygen as the oxidant is described. These reactions provide not only a novel alkali metal salt catalyzed aerobic oxidation, but also an efficient approach to thiophosphates and sulfenylarenes, which are ubiquitously found in pharmaceuticals and pesticides. The reaction proceeds under simple and mild reaction conditions, tolerates a wide range of functional groups, and is applicable to the late-stage synthesis and modification of bioactive molecules.
- Song, Song,Zhang, Yiqun,Yeerlan, Adeli,Zhu, Bencong,Liu, Jianzhong,Jiao, Ning
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supporting information
p. 2487 - 2491
(2017/02/23)
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- A thiophosphate synthetic method of compound and the method in a plurality of pharmaceutical application in the synthesis of (by machine translation)
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The invention discloses a having the general formula (III) of the thiophosphate synthetic method of compound, the purpose is to provide a novel, condition is simple, easy to industrial production of the thiophosphate synthetic method of compound. The method is to have the general formula (I) of the organophosphorus oxygen apperception compound having the general formula (II) with a mercaptan or phenyl-sulfhydryl apperception compound mixed, under the effects of catalyst, obtained by the reaction of the formula (III) of the thiophosphate compound. The method of the invention, can be cheap efficient synthesis of thiophosphate compounds, in actual production will have extensive application prospect. (by machine translation)
- -
-
Paragraph 0191; 0192; 0193; 0194
(2017/07/20)
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- Synthesis of P(O)-S organophosphorus compounds by dehydrogenative coupling reaction of P(O)H compounds with aryl thiols in the presence of base and air
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The synthesis method of P(O)-S organophosphorus compounds by dehydrogenative coupling reaction of P(O)H compounds and aryl thiols was developed. The reaction was carried in the presence of a base and air, and exhibited good characters such as metal-free,
- He, Wei,Hou, Xiao,Li, Xinjin,Song, Liang,Yu, Qing,Wang, Zhongwei
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supporting information
p. 3133 - 3138
(2017/05/08)
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- Iodine-catalyzed sulfenylation of H-phosphonates with diaryl disulfides under metal, base and solvent-free conditions
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Background: Although the exploitation of facile and efficient preparation for S-aryl phosphorothioates has gained considerable interest, there is still great demand for the development of a direct, convenient and especially environmentally benign protocol
- Wu, Xiang-Mei,Hong, Yu-Xiang
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- Direct synthesis of thiophosphates by reaction of diphenylphosphine oxide with sulfonyl chlorides
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A new method for the synthesis of thiophosphates by reductive coupling reaction of diphenylphosphine oxide and sulfonyl chlorides has been developed. The reaction is metal-free and needs no additives, affording various aryl and alkyl substituted thiophosphates in good to excellent yields under mild conditions.
- He, Wei,Wang, Zhiming,Li, Xinjin,Yu, Qing,Wang, Zhongwei
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supporting information
p. 7594 - 7598
(2016/11/11)
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- Synthesis of S-Aryl Phosphorothioates by Copper-Catalyzed Phosphorothiolation of Diaryliodonium and Arenediazonium Salts
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Green methods for the synthesis of S-aryl phosphorothioates have been developed based on copper-catalyzed multicomponent reactions involving diaryliodonium/arenediazonium salts, elemental sulfur, and R2P(O)H compounds. Most target products are obtained with these two methods in good to high yields at room temperature. These transformations allow the direct formation P-S and C-S bonds in one reaction.
- Zhang, Liangliang,Zhang, Pengbo,Li, Xueqin,Xu, Jian,Tang, Guo,Zhao, Yufen
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p. 5588 - 5594
(2016/07/13)
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- Peroxide promoted metal-free thiolation of phosphites by thiophenols/disulfides
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A metal-free oxidative P-S bonds coupling method for the synthesis of thiophosphates with DTBP as the oxidant is established. A wide range of functionalities are tolerated in the method. This method provides a facile way to synthesize thiophophates from readily available thiophenols/disulfides and phosphites.
- Wang, Jichao,Huang, Xin,Ni, Zhangqin,Wang, Sichang,Pan, Yuanjiang,Wu, Jun
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p. 7853 - 7859
(2015/09/15)
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- Iodine-catalyzed regioselective sulfenylation of indoles with sodium sulfinates
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An iodine-catalyzed sulfenylation of free indoles with sodium sulfinates is described. The reaction selectively afforded 3-arylthioindoles in good to high yields in anisole under metal-free conditions. Functional groups such as halogens were well tolerated under the optimized reaction conditions.
- Xiao, Fuhong,Xie, Hao,Liu, Saiwen,Deng, Guo-Jun
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supporting information
p. 364 - 368
(2014/05/20)
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- Copper(I)-induced sulfenylation of H-phosphonates, H-phosphonites and phosphine oxides with aryl/alkylsulfonylhydrazides as a thiol surrogate
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Aerobic dehydrogenative sulfenylation of H-phosphonites, and phosphine oxides with aryl/alkylsulfonyl hydrazides catalyzed by a sub-stoichiometric amount of copper iodide has been accomplished. This protocol is compatible with functional groups, and results in various thiophosphate derivatives in good to high yields.
- Kumaraswamy, Gullapalli,Raju, Ragam
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p. 2591 - 2598
(2014/09/29)
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- Environmentally benign synthesis and antimicrobial study of novel chalcogenophosphates
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We report in this work an environmentally benign zinc mediated synthesis of aryl and benzyl phosphorochalcogenoates in ethanol within a short reaction time. In vitro antimicrobial study along with statistical analysis and seed germination assay were perfo
- Mitra, Shubhanjan,Mukherjee, Sayani,Sen, Sukanta K.,Hajra, Alakananda
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supporting information
p. 2198 - 2201
(2014/05/06)
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- A simple and convenient method for the synthesis of S-aryl phosphorothioates catalyzed by cesium hydroxide
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In the presence of a catalytic amount of cesium hydroxide, the corresponding S-aryl phosphorothioates can be obtained by the reactions of dialkyl phosphites with diaryldisulfides in excellent yields at room temperature, using DMSO as a solvent. The reaction mechanism was discussed. The method provides a new and expedient path for the preparation of S-aryl phosphorothioates.
- Ouyang, Yue-Jun,Li, Yuan-Yuan,Li, Ning-Bo,Xu, Xin-Hua
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p. 1103 - 1105
(2014/01/06)
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- Room-temperature carbon-sulfur bond formation from Ni(II) σ-aryl complex via cleavage of the S-S bond of disulfide moieties
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The formation of ArSY (Y: C(= S)NMe2, Ph, P(= O)(OEt) 2) by reductive elimination from σ-aryl complexes (M(PPh 3)2PhBr, M = Ni, Pd), associated with disulfides (YS-SY, Y: C(=S)NMe2 (1), Ph (2), P(=O)(OEt)2 (3)), at ambient temperature, has been investigated. Various mechanistic features of disulfide bond (S-S) cleavage have been elucidated using disulfide 1 by 31P NMR spectroscopy and matrix-assisted laser desorption/ionization-time of flight mass spectrometric investigations. Based upon the results of nucleophilic cleavage of the S-S bond by PPh3, studies of the reductive elimination process show that when M(PPh3)2PhBr is mixed with disulfide 1, competitive reactions occur between the PPh3 ligand, disulfide 1 and a trace amount of water, leading to low C-S coupling yields; an oxidation reaction of PPh3 with disulfide and water occur prior to C-S cross-coupling, and phosphonium ion intermediates are likely involved. However, when the disulfide 1 is pretreated with PPh3, the Ni(II) σ-aryl complex affords the C-S coupling product nearly quantitatively at room temperature. The pretreatment method is also effective for the coupling reaction of disulfide 2 and Ni(II) σ-aryl complex. The difference between Ni(II) and Pd(II) σ-aryl complexes on C-S bond formation by reductive elimination can be explained by the affinity of metal for the thiolate ligands derived from the cleaved disulfide. Copyright 2013 John Wiley & Sons, Ltd. The formation of ArSY (Y: C(= S)NMe2, Ph, P(= O)(OEt)2) by reductive elimination from σ-aryl complexes (M(PPh3)2PhBr, M = Ni, Pd) at ambient temperature, has been investigated, a result that shows an effective C-S cross-coupling reaction. Copyright
- Okamoto, Ken,Housekeeper, Jeremy B.,Luscombe, Christine K.
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p. 639 - 643
(2013/11/19)
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- Copper(I) iodide catalyzed synthesis of thiophosphates by coupling of H -phosphonates with benzenethiols
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A simple, efficient, and new method has been developed for the preparation of thiophosphates from benzenethiols. The method involves copper(I) iodide catalyzed coupling of thiols with H-phosphonates in the presence of triethylamine. The reaction proceeds effectively to afford the corresponding thiophosphates in moderate to good yields via an aerobic dehydrogenative coupling of H-phosphonates with benzenethiols. This method is easy, rapid, and good-yielding for the synthesis of thiophosphates from benzenethiols. Georg Thieme Verlag Stuttgart. New York.
- Kaboudin, Babak,Abedi, Yaghoub,Kato, Jun-Ya,Yokomatsu, Tsutomu
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p. 2323 - 2327
(2013/09/02)
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- Kinetics and mechanism of the benzylaminolysis of O,O-diethyl S-aryl phosphorothioates in dimethyl sulfoxide
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The reactions of O,O-diethyl Z-S-aryl phosphorothioates with X-benzylamines are kinetically investigated in dimethyl sulfoxide at 85.0 °C. The Hammett (log k2 vs δX) and Broensted [log k2 vs pKa(X)] plots are biphasic concave downwards for substituent X v
- Adhikary, Keshab Kumar,Lee, Hai Whang
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experimental part
p. 3587 - 3591
(2012/01/11)
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- A novel and general method for the formation of S-aryl, Se-aryl, and Te-aryl phosphorochalcogenoates
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A new and general method for the synthesis of S-, Se-, and Te-aryl phosphorochalcogenoates (chalcogenophosphates) has been developed. S-P, Se-P, and Te-P bonds were formed by the coupling of readily available dialkyl phosphites with diaryl dichalcogenides at 30°C in dimethyl sulfoxide in the presence of catalytic amounts of copper iodide and diethylamine. The reaction proceeded smoothly without exclusion of moisture or air. Georg Thieme Verlag Stuttgart.
- Gao, Yu-Xing,Tang, Guo,Cao, Yu,Zhao, Yu-Fen
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experimental part
p. 1081 - 1086
(2009/12/03)
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- Free radical reaction of dialkyl phosphites and organic dichalcogenides: A new facile and convenient preparation of arylselenophosphates
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Azobisisobutyronitrile-initiated free radical reaction of dialkyl phosphites with diaryl diselenides afforded arylselenophosphates in high yields. Arylthiophosphates and aryltellurophosphates can also be synthesized by similar reaction of diaryl disulfide
- Xu, Qing,Liang, Chun-Gen,Huang, Xian
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p. 2777 - 2785
(2007/10/03)
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- Phosphorothioate-mercaptophosphonate rearrangement: Synthesis of new o-mercaptoaryl-and omercaptoheteroaryl phosphonates and their derivatives
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New o-mercaptoaryl and o-mcrcaptohetcroaryl phosphonates and their derivatives were prepared via an ori/io-lithiation of O,O-diisopropyl S-aryl, 5-(2-pyridyl), S-(2-thienyl) and 5-(3-thienyl) phosphorothioates followed by a phosphonyl group S → C migration. Elsevier,.
- Masson, Serge,Saint-Clair, Jean-Francois,Dore, Antonio,Saquet, Monique
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p. 951 - 964
(2007/10/03)
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- Two methods for the synthesis of (2-mercaptophenyl)phosphonic acid
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(2-Mercaptophenyl)phosphonic acid is prepared by hydrolysis of dialkyl (2-mercaptophenyl)phosphonate, which is itself formed either by reaction of dialkyl chlorophosphate with lithium 2-lithiobenzenethiolate, or from the lithiated derivative of the readily prepared O,O-diisopropyl S-phenyl thiophosphate whose phosphoryl group then undergoes an S → C migration.
- Masson,Saint-Clair,Saquet
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p. 485 - 486
(2007/10/02)
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- Hypervalent Iodine in Synthesis: 12. A New and Convenient Method for Preparation of O,O-Dialkyl S-Aryl Phosphoro Thiolates
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O,O-Dialkyl S-aryl phosphorothiolates have been prepared in better yields by the reaction of diaryliodonium salts with potassium O,O-dialkyl phosphorothiolates in cyclohexane at reflux temperature.
- Du-Dong, Liu,Da-wei, Chen,Zhen-Chu, Chen
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p. 2903 - 2908
(2007/10/02)
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- Addition, Substitution, and Deoxygenation Reactions of α-Phenyl-β-nitrostyrenes with the Anions of Thiols and Diethyl Phosphite: Formation of Indoles by Reaction with Ethyl Phosphites
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Reaction of excess RS- (R=Ph, t-Bu) with Ph2C=C(SPh)NO2 in Me2SO form Ph2C=CHSR via conversion of the initial Michael-type adducts into Ph2C(SR)CH=NO2- and Ph2C=CHNO2.In a similar fashion, reaction of (EtO)2PO- with Ph2C=C(SPh)NO2 forms initially mainly PhSP(O)(OEt)2 and Ph2CCH=NO2-, which upon acidic workup will yield the nitroalkane or the Nef reaction product, Ph2CCHO.The reaction of (EtO)2PO- with Ph2C=C(SPh)NO2 also produces Ph2CCN via a Perkow-type reaction of the Michael adduct to yield Ph2CCH=N(O)OP(O)(OEt)2 as an intermediate.The nitrile is also formed from Ph2CCH(NO2)2 with (EtO)2PO- in (EtO)2P(O)H or Me2SO at 30 deg C and in >95percent yield by the reaction of (EtO)3P with Ph2CCH(NO2)2 at 150 deg C.Reaction of Ph2C=CHNO2 or Ph2CCH2NO2 with excess (EtO)PO- in Me2SO or (EtO)2P(O)H forms 3-(diethoxyphosphinyl)-2,2-diphenylaziridine by a process postulated to involve Ph2C=CHN(O-)OP(O)(OEt)2, Ph2C=CHNOP(O)(OEt)2-, and 2,2-diphenyl-2H-azirine.Similarly, Ph2C=C(SBu-t)NO2 and (EtO)2PO- give 3-(tert-butylthio)-2,2-diphenyl-2H-azirine in Me2SO or 2-(tert-butylthio)-3-phenylindole in (EtO)2P(O)H solution.Deoxygenation of Ph2C=C(X)NO2 to form the 2-X-3-phenylindoles occurs in high yield at 150 deg C in (EtO)3P with X=H, PhS, or t-BuS while 2-nitrro-3-phenylindole is formed from Ph2C=C(NO2)2 in (EtO)2P(O)H at 150 deg C.
- Russell, Glen A.,Yao, Ching-Fa,Tashtoush, Hasan I.,Russell, June E.,Dedolph, Douglas F.
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p. 663 - 669
(2007/10/02)
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- SYNTHESIS OF O,O-DIALKYL S-PHENYL PHOSPHOROTHIOLATES- AND DITHIOLATES
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Benzenesulfenyl chloride reacts with trialkylphosphite to give O,O-dialkyl S-phenyl phosphorothiolates 3 in high yield.Compounds 3 are thiated using 1,3-dithia 2,4-diphosphetane 2,4-disulfides 6 to produce O,O-dialkyl S-phenyl phosphorodithiolates 7 in ne
- Yousif, N. M.,Gadalla, K. Z.,Yassin, S. M.
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p. 261 - 263
(2007/10/02)
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- REACTION OF SULFENAMIDES WITH DI-ALKYL AND TRIALKYL PHOSPHITES. AN EFFICIENT SYNTHESIS OF PHOSPHORAMIDATES BY UNUSUAL SUBSTITUTION AT S-N BOND IN (2-BENZOTHIAZOLYL)SULFENAMIDES
-
Regioselective attack of the trivalent phosphorus atom of dialkyl and trialkyl phosphites on either nitrogen or sulfur atom of sulfenamides has been found.The reaction of phenylsulfenamides with dialkyl phosphites yielded phosphorothiolates, whereas the treatment of (2-benzothiazolyl)sulfenamides with dialkyl and trialkyl phosphites gave phosphoramidates in excellent yields.
- Torii, Sigeru,Sayo, Noboru,Tanaka, Hideo
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p. 695 - 698
(2007/10/02)
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