Application of 1,1,3,3-tetramethylguanidine in the reaction of amino acids with pantolactone
摘要:
1,1,3,3-Tetramethylguanidium salts of selected amino acids were reacted with (R)- or (S)-pantolactone to gave (R)- or (S)-N-(2,4-dihydroxy-3,3-dimethyl-1-oxobutyl)aminoacids, respectively. No racemisation of the amino acids, and only a slight racemisation of the pantolactone was observed. (C) 2004 Elsevier Ltd. All rights reserved.
1,1,3,3-Tetramethylguanidium salts of selected amino acids were reacted with (R)- or (S)-pantolactone to gave (R)- or (S)-N-(2,4-dihydroxy-3,3-dimethyl-1-oxobutyl)aminoacids, respectively. No racemisation of the amino acids, and only a slight racemisation of the pantolactone was observed. (C) 2004 Elsevier Ltd. All rights reserved.