47467-89-0Relevant academic research and scientific papers
Photochemistry of Tris(2,4-dibromophenyl)amine and its Application to Co-oxidation on Sulfides and Phosphines?
Bonesi, Sergio M.,Mella, Mariella,Merli, Daniele,Protti, Stefano
, p. 1278 - 1288 (2021/03/16)
The photochemistry of tris(2,4-dibromophenyl)amine was investigated via time-resolved nanosecond spectroscopy. The tris(2,4-dibromophenyl)amine radical cation (“Magic Green”) was immediately detected after the laser pulse; this intermediate then cyclizes to N-aryl-4a,4b-dihydrocarbazole radical cation. The latter transient reacted with molecular oxygen to provide the corresponding hydroperoxyl radical, which smoothly co-oxidize sulfides into sulfoxides. On the other hand, the photogenerated “Magic Green” was exploited to promote the co-oxidation of nucleophilic triarylphosphines to triarylphosphine oxides through an electron transfer process preventing the amine cyclization. In this case, the intermediate Ar3POO?+ was found to play a key role in phosphine oxide formation.
EUROPIUM COMPLEX
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Paragraph 0359-0361, (2020/11/23)
To provide europium complexes having high photostability. A europium complex expressed with the following formula (A): {wherein, RA and RB are independently a cyclic alkyl group with 3 to 10 carbons, respectively, and RC is a cyclic alkyl group with 3 to 10 carbons or a phenyl group expressed with the following formula (B): (wherein, XA, XB, AC, XD and XE independently represent a hydrogen atom; a fluorine atom; an alkyl group with 1 to 3 carbon(s); an alkyloxy group with 1 to 3 carbon(s); an aryloxy group with 6 to 10 carbons; a fluoroalkyl group with 1 to 3 carbon(s); a fluoroalkyloxy group with 1 to 3 carbon(s); or a phenyl group that may be substituted with a fluorine atom, an alkyl group with 1 to 3 carbon(s), an alkyloxy group with 1 to 3 carbon(s), a fluoroalkyl group with 1 to 3 carbon(s), a fluoroalkyloxy group with 1 to 3 carbon(s), a fluorophenyl group, a hydroxyl group or a cyano group, respectively); RA is a cyclic alkyl group with 3 to 10 carbons; RB and RC are a phenyl group expressed with the formula (B), provided, however, that a case where RA a cyclohexyl group, and, RB and RC are a phenyl group is excluded; or RA, RB and RC independently represent an ortho-substituted phenyl group expressed with the following formula (Ba): (wherein, XE represents a hydrogen atom, an alkyl group with 1 to 3 carbon(s), an alkyloxy group with 1 to 3 carbon(s), a fluoroalkyl group with 1 to 3 carbon(s), a fluoroalkyloxy group with 1 to 3 carbon(s), a naphthyl group that may be substituted with a fluorine atom, a pyridyl group that may be substituted with a fluorine atom, or a phenyl group that is expressed with a formula (C): [wherein, ZA, ZC and ZE independently represent a hydrogen atom, a fluorine atom, an alkyl group with 1 to 3 carbon(s), an alkyloxy group with 1 to 3 carbon(s), a fluoroalkyl group with 1 to 3 carbon(s), a fluoroalkyloxy group with 1 to 3 carbon(s), a phenyl group that may be substituted with a fluorine atom, a hydroxyl group or a cyano group; ZB and ZD independently represent a hydrogen atom or a fluorine atom, respectively], provided, however, that a case where RA, RB and RC are all a phenyl group is excluded), respectively; RD represents a hydrogen atom, a deuterium atom or a fluorine atom; WA and WB independently represent an alkyl group with 1 to 6 carbon(s), a fluoroalkyl group with 1 to 6 carbon(s), a phenyl group, a 2-thienyl group or a 3-thienyl group; and ‘n’ represents an integer of 1 to 3}.
Mild and efficient oxidation of phosphorus(III) compounds with Selectfluor
Chen, Qian,Zeng, Jiekun,Yan, Xinxing,Huang, Yulin,Du, Zhiyun,Zhang, Kun,Wen, Chunxiao
supporting information, p. 3379 - 3381 (2016/07/11)
A novel and efficient oxidation of phosphorus(III) compounds with Selectfluor is described. The reactions smoothly led to the formation of tertiary phosphine oxides, phosphinates, and phosphonates in up to 99% yield under mild conditions in minutes.
The Influence of Peripheral Substituent Modification on PV, MnIII, and MnV(O) Corrolazines: X-ray Crystallography, Electrochemical and Spectroscopic Properties, and HAT and OAT Reactivities
Joslin, Evan E.,Zaragoza, Jan Paulo T.,Baglia, Regina A.,Siegler, Maxime A.,Goldberg, David P.
, p. 8646 - 8660 (2016/11/09)
The influence of remote peripheral substitution on the physicochemical properties and reactivity of phosphorus and manganese corrolazine (Cz) complexes was examined. The substitution of p-MeO for p-t-Bu groups on the eight phenyl substituents of the β-car
Iridium(III)-Catalyzed C H Amidation of Arylphosphoryls Leading to a P-Stereogenic Center
Gwon, Donghyeon,Lee, Donggun,Kim, Jiyu,Park, Sehoon,Chang, Sukbok
supporting information, p. 12421 - 12425 (2016/08/25)
Direct C H amidation of arylphosphoryl compounds has been developed by using an IrIIIcatalyst system under mild conditions. A wide range of substrates could be employed with high functional-group tolerance. This procedure was successfully applied for the first time to the asymmetric reaction giving rise to a P-chirogenic center with a high diastereomeric ratio of up to 19:1 (90 % de).
Catalytic asymmetric cyano-ethoxycarbonylation reaction of aldehydes using a YLi3tris(binaphthoxide) (YLB) complex: Mechanism and roles of achiral additives
Yamagiwa, Noriyuki,Tian, Jun,Matsunaga, Shigeki,Shibasaki, Masakatsu
, p. 3413 - 3422 (2007/10/03)
Full details of a catalytic asymmetric cyano-ethoxycarbonylation reaction promoted by a heterobimetallic YLi3tris(binaphthoxide) complex (YLB 1), especially mechanistic studies, are described. In the cyanation reaction of aldehydes with ethyl c
Preparation of organohalosilanes
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, (2008/06/13)
In an industrial process for preparing organohalosilanes by reacting metallic silicon particles with an organohalide in the presence of a copper catalyst, a contact mass composed of the metallic silicon and the catalyst further contains an effective amount of a phosphine chalcogenide compound. The invention drastically increases the silane formation rate and the utilization of silicon without lowering the selectivity of useful silane.
Synthesis of a family of triarylphosphanes with fluorous phase affinity
Sinou, Denis,Maillard, David,Pozzi, Gianluca
, p. 269 - 275 (2007/10/03)
A very efficient synthesis of new perfluoro-functionalized triarylphosphanes using an oxygen substituent as the branching point for the introduction of the perfluoro chain has been developed. This approach enabled the introduction of the perfluoro tail at the para, meta, and oitho position, giving highly perfluorinated analogues of triphenylphosphane con-taining between 54 and 59 wt% fluorine. This methodology has been extended to the synthesis of a perfluoro analogue of l,2-bis(diphenylphosphanyl)ethane. Fluorous/organic partition coefficients of some of the perfluorophosphanes have been measured, as well as their rates of oxidation. WILEY-VCH Verlag GmbH, 2002.
Reaction of arylphosphines with singlet oxygen: intra- vs intermolecular oxidation.
Gao,Ho,Dong,Khuu,Franco,Sezer,Selke
, p. 3719 - 3722 (2007/10/03)
[reaction--see text] The chemistry of singlet oxygen with all three isomers of tris(methoxyphenyl)phosphine has been studied. For the severely hindered ortho isomer, intramolecular rearrangement to form phenyl diphenyl phosphinate is preferred to formatio
