36640-26-3Relevant academic research and scientific papers
Method for synthesizing beta-thiocarbonyl compound by taking aryl sulfonyl chloride as sulfur source
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Paragraph 0051; 0052; 0053; 0054, (2020/11/09)
The invention discloses a method for synthesizing a beta-thiocarbonyl compound by taking aryl sulfonyl chloride as a sulfur source, comprising the following steps of: in an air atmosphere, adding arylsulfonyl chloride, ketene, triphenylphosphine, potassiu
Highly stereoselective anti-Markovnikov hydrothiolation of alkynes and electron-deficient alkenes by a supported Cu-NHC complex
Yang, Yong,Rioux, Robert M.
, p. 3916 - 3925 (2014/08/05)
A practical, efficient, and low-cost heterogeneous catalyst consisting of a Cu-NHC (N-heterocyclic carbene) complex grafted to SBA-15 silica for the catalytic hydrothiolation of alkynes and electron-deficient alkenes under mild reaction conditions has been developed. The heterogeneous catalyst displays higher activity and stereoselectivity to Z-anti-Markovnikov isomers compared with the homogeneous analog under otherwise identical reaction conditions. The catalytic system is applicable to a broad range of alkynes and thiols and is recyclable without significant loss in catalytic performance. High activity and perfect selectivity to alkyl sulfides formed by the addition of electron-deficient alkenes to various thiols catalyzed by the supported Cu-NHC complex were also realized. This journal is the Partner Organisations 2014.
Hybrid material from Zn[aminoacid]2 applied in the thio-Michael synthesis
Darbem, Mariana P.,Oliveira, Aline R.,Winck, Cristiane R.,Rinaldi, Andrelson W.,Domingues, Nelson Luís C.
, p. 5179 - 5181 (2015/01/08)
Recently, methodologies that are in accordance with green chemistry principles have been garnering increasing attention. One of the most applied methods in this field is heterogeneous catalysis. In this context, many catalysts have been developed, and the
Acidic-functionalized ionic liquid as an efficient, green and reusable catalyst for hetero-Michael addition of nitrogen, sulfur and oxygen nucleophiles to α,β-unsaturated ketones
Han, Feng,Yang, Lei,Li, Zhen,Xia, Chungu
experimental part, p. 346 - 354 (2012/01/14)
A series of acidic-functionalized ionic liquids were synthesized and applied to the hetero-Michael addition of nitrogen, sulfur and oxygen nucleophiles to α,β-unsaturated ketones under solvent-free conditions. Notably, 1-methylimidazolium p-toluenesulfoni
Rongalite and base-promoted cleavage of disulfides and subsequent Michael addition to α,β-unsaturated ketones/esters: an odorless synthesis of β-sulfido carbonyl compounds
Guo, Wenxue,Lv, Guangshu,Chen, Jiuxi,Gao, Wenxia,Ding, Jinchang,Wu, Huayue
supporting information; experimental part, p. 2297 - 2300 (2010/06/16)
A highly practical method to access β-sulfido carbonyl compounds was developed, which could be conducted without any expensive reagent, special apparatus/technique, and no requirement of metal catalysts. β-Sulfido carbonyl compounds were formed at room temperature, in short time and with high chemoselectivity in good to excellent yields. A plausible mechanism for the role of Rongalite, as a promoter for the cleavage of disulfides generating thiolate anions that then undergo facile thia-Michael addition to α,β-unsaturated ketones and esters is proposed.
Asymmetrie ruthenium-catalyzed 1,4-additions of aryl thiols to enones
Badoiu, Andrei,Bernardinelli, Gerald,Besnard, Celine,Peter Kuendig
supporting information; experimental part, p. 193 - 200 (2010/04/25)
Well defined, stable, one-point binding ruthenium complexes 1 and 2 selectively bind and activate α,β-unsaturated carbonyl compounds for cycloaddition reactions. These mild Lewis acids catalyze asymmetric 1,4-addition reactions of aryl thiols to enones wi
Catalytic carbon-sulfur bond formation by amphoteric vanadyl triflate: exploring with thia-Michael addition, thioacetalization, and transthioacetalization reactions
Chen, Chien-Tien,Lin, Yow-Dzer,Liu, Cheng-Yuan
supporting information; experimental part, p. 10470 - 10476 (2010/02/28)
A series of thiols have been examined as protic nucleophiles for Michael-type additions to α,β-unsaturated carbonyls as well as double nucleophilic condensations with aldehydes, ketones, and acetals catalyzed by amphoteric, water-tolerant vanadyl triflate under mild and neutral conditions. The newly developed C-S bond formation protocols were carried out smoothly in good to high yields in a highly chemoselective manner.
PESTICIDAL SUBSTITUTED THIOETHERS
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Page/Page column 44; 53, (2008/06/13)
The invention relates to the use of thioether derivatives of formula (I) wherein: R1 is an unsubstituted or substituted (C1-C6) alkyl, A is a divalent unit taken from the group CO, CR3(OR4), CR3
Indium(I) iodide promoted cleavage of dialkyl disulfides - Application of the Michael addition of thiolate anions to conjugated carbonyl compounds and regioselective ring opening of epoxides
Ranu, Brindaban C.,Mandal, Tanmay
, p. 762 - 770 (2007/10/03)
Indium(I) iodide promotes cleavage of dialkyl disulfides generating thiolate anions that then undergo facile addition to α,β-unsaturated ketones, aldehydes, carboxylic esters, and nitriles under neutral conditions producing corresponding β-ketosulfides or β-cyanosulfides. This strategy has also been used for the regioselective nucleophilic ring opening of epoxides by thiolate anions in presence of indium(III) chloride producing corresponding β-hydroxyphenyl sulfides. The reactions are in general, very clean, high yielding, and reasonably fast. Thus, simple and convenient procedures for the synthesis of β-ketosulfides or β-cyanosulfides and β-hydroxyalkyl sulfides have been developed using this cleavage reaction.
Formation of zinc thiolates by reductive cleavage of disulfides with the Zn/AlCl3 system in aqueous media, and their use for Michael addition
Movassagh, Barahman,Zakinezhad, Yousef
, p. 47 - 49 (2008/02/10)
A simple, convenient, and efficient one-pot protocol for the reductive cleavage of disulfides and Michael addition to α,β-unsaturated carbonyl compounds mediated by the Zn/AlCl3 system in aqueous media is reported.
