185028-58-4Relevant academic research and scientific papers
γ-lactone formation in the addition of benzenesulfonyl bromide to diene and enyne esters
Wang, Chen,Russell, Glen A.
, p. 2066 - 2069 (1999)
The gem-dialkyl effect has been used to promote the formation of functionalized γ-lactones in the addition of benzenesulfonyl bromide to diene and enyne esters. Introduction of 3 tool % of pyridine into the reactions increases the yields of lactones produced from tertiary esters. Formation of the C(α)-C(β) bond of γ-lactones has been achieved in both C(α)→C(β) and Cβ→C(α) radical cyclization directions.
Synthesis of spirocyclic butenolides by ring closing metathesis
Albrecht, Uwe,Langer, Peter
, p. 4648 - 4654 (2007/10/03)
Spirocyclic butenolides were efficiently prepared by a ring closing metathesis strategy.
An efficient DABCO-catalyzed Ireland-Claisen rearrangement of allylic acrylates
Li, Yunxia,Wang, Quanrui,Goeke, Andreas,Fráter, Georg
, p. 288 - 292 (2007/10/03)
A novel DABCO-catalyzed Ireland-Claisen [3,3]-rearrangement of allylic acrylates to give α-methylene-γ,δ-unsaturated carboxylic acids in the presence of an excess of TMSCl and DBU in refluxing acetonitrile was developed. The protocol provides an easy entry to α-methylene-γ, δ-unsaturated carboxylic acids from allylic alcohols in good yields. Georg Thieme Verlag Stuttgart.
Synthesis of spirocyclic butenolides by ring closing metathesis
Langer, Peter,Albrecht, Uwe
, p. 1841 - 1842 (2007/10/03)
Spirocyclic butenolides were efficiently prepared by a ring closing metathesis strategy.
