Showing papers by "Andrew B. Holmes published in 1979"

Selective desilylation of bis(trimethylsilyl)acetylenes

Abstract: Substituted acetylenic carbinols such as (2), (5), and (6) are obtained from the reaction of carbonyl compounds with the potassium or lithium salts of trimethylsilyacetylenes; these are prepared either by the in situ cleavage of bis(trimethylsilyl)acetylenes with 1–10 mol% KF–18-crown-6 ether or by the quantitative monodesilylation of bis-silylacetylenes with MeLiLiBr complex.

Diels–Alder reaction of furan and fumaryl chloride: X-ray crystal and molecular structure of an oxabicyclo[2.2.1]heptane derivative. Synthesis of reduction products of cis-maneonene-A

Abstract: The addition of fumaryl chloride to furan, followed by hydrolysis and bromolactonisation of the adduct, leads to the bromo-lactone acid (2a) which serves as a precursor for the synthesis of the reduction products (5a), (5b), and (6a) of cis-maneonene-A and of the tosylate (6b) whose X-ray crystal structure has been determined.