Diastereoselective alkylation of chiral 2-imidazolidinone glycolates: asymmetric synthesis of α-hydroxy carboxylic acids
摘要:
Sodium enolates of chiral 2-imidazolidinone glycolates reacted with alkyl halides to produce alpha-alkylated products with high diastereoselectivities, which were readily removed by simple alkaline hydrolysis and were converted to the protected alpha-hydroxy carboxylic acids. The new stereogenic center was assigned the (R) -configuration by comparison with known compounds. (C) 2005 Published by Elsevier Ltd.
Diastereoselective alkylation of chiral 2-imidazolidinone glycolates: asymmetric synthesis of α-hydroxy carboxylic acids
摘要:
Sodium enolates of chiral 2-imidazolidinone glycolates reacted with alkyl halides to produce alpha-alkylated products with high diastereoselectivities, which were readily removed by simple alkaline hydrolysis and were converted to the protected alpha-hydroxy carboxylic acids. The new stereogenic center was assigned the (R) -configuration by comparison with known compounds. (C) 2005 Published by Elsevier Ltd.