Acetylenic carbinols, their use as starting compounds in the synthesis of beta-damascenon and allenic carbinols as intermediates in said synthesis, and process for their preparation

摘要

the compounds of formula are described.and formulain which the symbol r denotes a trialkyl silyl radical, alkyl radical, a c1 to c6, preferably methyl, tert butyl or isoamyl or a group with formulain which r and r2 are each separately is lower alkyl, preferably c, c3, or, together, a tetramethylene group.;it also describes a process for their preparation and their use as starting materials for the preparation of beta damascenone.