New Synthetic Analogs of Retinoids: Synthesis of Aromatic Analogs of 9‐Methylidene‐ and 13‐Demethyl‐9‐methylidene‐retinol, ‐retinal,and Ethyl 13‐Demethyl‐9‐methylideneretinoate
Aromatic analogs of 9‐methylidene and 13‐demethyl‐9‐methylideneretinol, ‐retinal, and ethyl 13‐demethyl‐9‐methylideneretinoate were synthesized via a new β‐methylidene‐aldehyde synthon.