Nuerrenbach,A. et al., Justus Liebigs Annalen der Chemie, 1977, p. 1146 - 1159
作者:Nuerrenbach,A. et al.
DOI:——
日期:——
Retinoids and related compounds. VII. Synthesis of retinoidal 4-ylidenebutenolides and their homologues.
作者:MASAYOSHI ITO、TSUTOMU IWATA、KIYOSHI TSUKIDA
DOI:10.1248/cpb.32.1709
日期:——
Retinoidal ylidenebutenolides (XVIa, b and XVIIa, b) and their homologues have been synthesized in several steps starting from β-cyclocitral (IIIa) or 3-methoxy-β-cyclocitral (IIIb). The spectral characteristics of the 4-ylidenebutenolides (II) are described in comparison with those of methyl all-(E)-retinoate (XX).