10498-83-6Relevant articles and documents
Samarium(II) iodide-induced tandem reductive coupling-Dieckmann condensation reaction: One-step synthesis of bicyclic oxacyclopentanecarboxylate from bis-α,β-unsaturated esters
Shinohara, Ikuo,Okue, Masayuki,Yamada, Yasuji,Nagaoka, Hiroto
, p. 4649 - 4652 (2003)
The tandem cyclization of bis-α,β-unsaturated esters with SmI2-Sm-THF in the presence of catalytic amount of methanol was found to stereoselectively provide bicyclo[4.3.0]nonan-8-ones and bicyclo[3.3.0]octan-3-ones.
Stereoselective hydrocoupling of cinnamic acid esters by electroreduction: Application to asymmetric synthesis of hydrodimers
Kise, Naoki,Iitaka, Shumei,Iwasaki, Keisuke,Ueda, Nasuo
, p. 8305 - 8315 (2007/10/03)
The electroreduction of Ar-substituted methyl cinnamates in acetonitrile gave all-trans cyclized hydrodimers stereoselectively (58-90% de). In all cases, small amounts (2-symmetric dl-3,4-diaryladipic acids and trans-3,4-diarylcyclopentanones. The chiral auxiliary [(1R)-exo]-3-exo-(diphenylmethyl)borneol, prepared from (1R)-(+)-camphor, was highly effective for the stereoselective hydrocoupling of its cinnamates by electroreduction. From the resulting hydrodimers, (3R,4R)-3,4-diaryladipic acid esters and (3R,4R)-3,4-diarylhexane-1,6-diols were synthesized in 87-95% ee.
Neuartige einstufige Synthese von Oxocyclopentancarboxylaten durch elektrochemische Reduktion von Zimtsaeureestern
Nishiguchi, Ikuzo,Hirashima, Tsuneaki
, p. 61 - 62 (2007/10/02)
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