Synthesis of new cyclic retinoids via base induced self-condensation of C-13, C-14 and C-15 units
摘要:
New cyclic retinoids from beta-ionone and C-14 and C-15 derivatives were synthesised by self-condensation promoted by strong bases. (C) 2000 Published by Elsevier Science Ltd. All rights reserved.
The proline and β-lactoglobulin mediated asymmetric self-condensation of β-ionylideneacetaldehyde, retinal and related compounds.
作者:Alfred E. Asato、Coran Watanabe、Xiao-Yuan Li、R.S.H. Liu
DOI:10.1016/s0040-4039(00)79825-x
日期:1992.5
Proline was found to effectively mediate the asymmetric reaction of beta-ionylideneacetaldehyde 1A, retinal and related alpha,beta-unsaturated aldehydes to form their corresponding self-condensation products in reasonable enantiomeric excess (up to 65% ee). This same interesting conversion was also observed when 1A was incubated in the presence of the milk whey protein beta-lactoglobulin (BLG).