The author of 《Synthesis of a C1-C12 Fragment of Gulmirecin B》 were Rengarasu, Rathikrishnan; Maier, Martin E.. And the article was published in Synlett in 2019. Application of 1530-32-1 The author mentioned the following in the article:
The synthesis of a C1-C14 fragment I of the macrolide antibiotic gulmirecin B through formation of the C7-C8 bond by addition of a vinyllithium intermediate to a C1-C7 aldehyde was investigated. This crucial coupling was successful with a vinyllithium reagent corresponding to a C8-C12 fragment. The C8-C12 vinyl bromide II was prepared from L-malic acid. The C1-C7 aldehyde III building block was synthesized from hex-5-enoic acid by using an Evans alkylation, a cross-metathesis, and an asym. dihydroxylation as key steps. In the experimental materials used by the author, we found Ethyltriphenylphosphonium bromide(cas: 1530-32-1Application of 1530-32-1)
Ethyltriphenylphosphonium bromide(cas: 1530-32-1) is a phase transfer catalyst, used to accelerate the cure of phenolic-based epoxy resins, certain fluoroelastomer resins and thermosetting powder coatings. CatOnium ETPB is also used as catalysts in the synthesis of certain organic compounds.Application of 1530-32-1
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary