Asymmetric trimethylsilylcyanation of aldehydes catalyzed by chiral salen TiIV complexes with theC 1 symmetry
摘要:
Asymmetric trimethylsilylcyanation of a number of aromatic and aliphatic aldehydes catalyzed by chiral Ti-IV complexes prepared in situ from Ti(OPri)(4) and (1S)-[N,N'-bis(2'-hydroxy-3'-tert-butylbenzylidene)]-1,2-diaminoalkanes gives products with (S)-absolute configurations.