Memory of chirality effects in aldol cyclisations of 1-(3-oxobutyryl) derivatives of l-4-oxaproline and l-proline isopropyl esters
摘要:
Stereoretentive C C bond formations are features of the aldol cyclisations of the 1-(3-oxobutyryl) derkratives of L-4-oxaproline and L-proline isopropyl esters. consistent with the involvement of axially chiral enolate intermediates. (C) 2002 Elsevier Science Ltd. All rights reserved.
Memory of chirality effects in aldol cyclisations of 1-(3-oxobutyryl) derivatives of l-4-oxaproline and l-proline isopropyl esters
摘要:
Stereoretentive C C bond formations are features of the aldol cyclisations of the 1-(3-oxobutyryl) derkratives of L-4-oxaproline and L-proline isopropyl esters. consistent with the involvement of axially chiral enolate intermediates. (C) 2002 Elsevier Science Ltd. All rights reserved.