作者:Christina Wedemeyer-Exl、Tamis Darbre、Reinhart Keese
DOI:10.1002/(sici)1522-2675(19990804)82:8<1173::aid-hlca1173>3.0.co;2-2
日期:1999.8.4
The acid-catalyzed transfer of a Me group from N,N-dimethylaniline (6) to viiamin-B-12-derived Co-1 complexes 2a,b was realized (Scheme 3). Hexane-1-thiol (8) was methylated by the methylcobalt complexes 4a,b in the presence of pyridine. Conditions for the complete cycle, i.e., Me transfer from 6 to 8 with Co-1 complexes acting as a nucleophile and a nucleofuge have been established. The importance of Zn2+ as activating agent and of the basicity of tertiary amines for the Me transfer has been investigated.