Lewis acid complexed heteroatom carbanions; a new concept for α-metallation of tertiary amines
作者:Satinder V. Kessar、Paramjit Singh、Rahul Vohra、Nachhattar Pal Kaur、Kamal Nain Singh
DOI:10.1039/c39910000568
日期:——
BF3 complexes of typical benzylic, allylic and saturated N-methyl tertiary amines were α-lithiated, with lithium tetramethylpiperidide (LTMP) or sec-butyllithium, and were treated with electrophiles.
Novel zinc-promoted alkylation of iminium salts. New synthesis of benzylisoquinoline, phthalidylisoquinoline, and protoberberine alkaloids and related compounds