142072-65-9Relevant academic research and scientific papers
Expeditious and Efficient Annulation Protocol for the Synthesis of α,β-Unsaturated δ-Lactones from β-Keto Esters
Nangia, A.,Rao, P. Bheema
, p. 2375 - 2378 (2007/10/02)
β-Keto esters 6a-e are transformed into β-keto alcohols 7a-e, which are homologated to phosphonates 9a-e.Intramolecular Horner-Wadsworth-Emmons reaction affords δ-lactones 10a-d in excellent overall yields. Key words: δ-Lactones; β-Keto esters; Intramolecular; Phosphonates; Horner-Wadsworth-Emmons
Studies toward total synthesis of non-aromatic Erythrina alkaloids. (1) Synthesis and isomerization of unsaturated bicyclic δ-lactones
Tsuda,Ishiura,Takamura,Hosoi,Isobe,Mohri
, p. 2797 - 2802 (2007/10/02)
As a model of the C/D ring system of erythroidines, bicyclic unsaturated δ-lactones were synthesized in a regio-selective manner, and their isomerization reactions in the presence of acid, base (DBU, 1,8-diazabicyclo-[5.4.0]undec-7-ene), and NaOH were stu
