N-alkylation of amino acids during hydrogenolytic deprotection
作者:F. Filira、L. Biondi、M. Gobbo、R. Rocchi
DOI:10.1016/0040-4039(91)80135-s
日期:1991.12
Partial N-alkylation of amino acids was observed during hydrogenolytic deprotection.
General method for the synthesis of N-methyl amino acids and N-alkyl amino esters from O'Donnell's Schiff bases
作者:Jason J. Chruma、Dalibor Sames、Robin Polt
DOI:10.1016/s0040-4039(97)01132-5
日期:1997.7
N-methyl aminoacids, including L-abrine, and N-alkylamino esters, were synthesized by reductive amination of O'Donnell's Schiff base amino esters with NaBH3CN and formaldehyde, or the appropriate aldehyde in CH3CN or THF in good to excellent yields, and with high purity.