17890-34-5Relevant articles and documents
Deoxofluorination reactions using N,N-disubstituted aminodifluorosulfinium tetrafluoroborate salts
Mahé, Olivier,L'Heureux, Alexandre,Couturier, Michel,Bennett, Christopher,Clayton, Simon,Tovell, David,Beaulieu, Francis,Paquin, Jean-Fran?ois
, p. 57 - 60 (2013/11/06)
The synthesis of N,N-disubstituted aminodifluorosulfinium tetrafluoroborate salts is reported, and their behavior as deoxofluorinating agent was evaluated. The deoxofluorination reactions were performed using a primary alcohol, a secondary alcohol and a ketone. Results show that subtle modification of the structure of the reagents can noticeably affect the reactivity and the selectivity in deoxofluorination reactions.
DISUBSTITUTED-AMINODIFLUOROSULFINIUM SALTS, PROCESS FOR PREPARING SAME AND METHOD OF USE AS DEOXOFLUORINATION REAGENTS
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Page/Page column 29, (2010/12/31)
The invention relates to disubstituted-aminodifluorosulfinium salts represented by the formula (I). Processes for preparing same and methods of use as deoxofluorinating reagent is also provided.
Development of a new class of chiral phosphorus ligands: P-chirogenic diaminophosphine oxides. A unique source of enantioselection in Pd-catalyzed asymmetric construction of quaternary carbons
Nemoto, Tetsuhiro,Masuda, Takamasa,Matsumoto, Takayoshi,Hamada, Yasumasa
, p. 7172 - 7178 (2007/10/03)
We have recently developed a new class of chiral phosphorus ligands: P-chirogenic diaminophosphine oxides. These pentavalent phosphorus compounds have been successfully applied to Pd-catalyzed asymmetric construction of tertiary and quaternary carbons. The actual ligand structure was the trivalent phosphorus species 17, which was generated in situ by BSA-induced P(V) to P(III) transformation of 6, the preligand. Detailed mechanistic studies, including asymmetric amplification and initial rate kinetics, revealed that complex 18 [Pd-17 (1:2) complex] was the active catalyst. The important function of the nitrogen atom on the sidearm in the ligands was also clarified. The source of enantioselection in the construction of asymmetric quaternary carbons was the secondary ligand substrate interaction mediated by N-Zn coordination.