399513-49-6Relevant articles and documents
Nucleophilic Organic Base DABCO-Mediated Chemospecific Meinwald Rearrangement of Terminal Epoxides into Methyl Ketones
Li, Siqi,Shi, Yi,Li, Pingfan,Xu, Jiaxi
, p. 4443 - 4450 (2019)
Nucleophilic organic base DABCO (1,4-diazabicyclo[2.2.2]octane)-mediated Meinwald rearrangement of various epoxides was investigated. 2-Aryl-, alkenyl-, and alkynylepoxides generate the corresponding methyl ketones chemospecifically in good to excellent yields. The current DABCO-mediated Meinwald rearrangement of epoxides features readily accessible starting materials, a wide substrate scope, a transition-metal- and acid-free environment, and chemospecificity in the isomerization of epoxides.
Chemoselective cross metathesis of bishomoallylic alcohols: Rapid access to fragment A of the cryptophycins
Lautens, Mark,Maddess, Matthew L.
, p. 1883 - 1886 (2007/10/03)
Equation presented. The racemic or enantioselective allylation of in situ formed β,γ-unsaturated aldehydes provides efficient access to bishomoallylic alcohols from readily available 2-vinyloxiranes. These products, when subjected to modified Grubbs cross