21213-15-0Relevant articles and documents
METHOD FOR PRODUCING SULFONIUM SALT
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Paragraph 0060, (2020/02/26)
PROBLEM TO BE SOLVED: To provide a simple method for producing a sulfonium salt useful as a quencher, in which the structure of sulfonium is not limited but is especially a triarylsulfonium having an arylthio group(s) and which has an anionic residue of s
Palladium/PC-Phos-Catalyzed Enantioselective Arylation of General Sulfenate Anions: Scope and Synthetic Applications
Wang, Lei,Chen, Mingjie,Zhang, Peichao,Li, Wenbo,Zhang, Junliang
, p. 3467 - 3473 (2018/03/13)
Herein we reported an efficient palladium-catalyzed enantioselective arylation of both alkyl and aryl sulfenate anions to deliver various chiral sulfoxides in good yields (up to 98%) with excellent enantioselectivities (up to 99% ee) by the use of our developed chiral O,P-ligands (PC-Phos). PC-Phos are easily prepared in short steps from inexpensive commercially available starting materials. The single-crystal structure of the PC4/PdCl2 showed that a rarely observed 11-membered ring was formed via the O,P-coordination with the palladium(II) center. The salient features of this method include general substrate scope, ease of scale-up, applicable to the late-stage modification of bioactive compounds, and the synthesis of a marketed medicine Sulindac.
SULFONIUM SALT, PHOTO-ACID GENERATOR, AND PHOTOSENSITIVE RESIN COMPOSITION
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Page/Page column 30, (2012/01/11)
There is provided a sulfonium salt having high photosensitivity to the i--line. The invention relates to a sulfonium salt represented by formula (1) described below: [in formula (1), R1 to R6 each independently represent an alkyl gro