Details

Autor(en) / Beteiligte

• Carden, Robert G.
• Widenhoefer, Ross A.

Titel

Gold Sulfonium Benzylide Complexes Undergo Efficient Benzylidene Transfer to Alkenes

Ist Teil von

• Chemistry : a European journal, 2019-08, Vol.25 (47), p.11026-11030

Ort / Verlag

Germany: Wiley Subscription Services, Inc

Erscheinungsjahr

2019

Quelle

Wiley-Blackwell Journals

Beschreibungen/Notizen

• The gold sulfonium benzylide complexes [(P1)AuCHPh(SR1R2)]+ {B[3,5‐CF3C6H3]4}− [P1=P(tBu)2o‐biphenyl; R1, R2=‐(CH2)4‐ (1 a); R1=Et, R2=Ph (1 b); R1=R2=Ph (1 c)] were synthesized by reaction of the gold α‐chloro benzyl complex (P1)AuCHClPh with sodium tetrakis[3,5‐bis(trifluoromethyl)phenyl]borate and excess sulfide. Complexes 1 undergo efficient benzylidene transfer to alkenes and DMSO under mild conditions without external activation. Kinetic analysis of the reaction of 1 c with styrene was consistent with the intermediacy of the cationic gold benzylidene complex [(P1)AuCHPh]+ (I). Gold sulfonium benzylide complexes undergo facile and efficient benzylidene transfer to alkenes through the intermediacy of a cationic gold benzylidene complex.