71847-67-1Relevant academic research and scientific papers
Copper-Catalyzed Sulfenylation, Sulfonylation, and Selenylation of 2,3-Allenoic Acids with Disulfides or Diselenides
Xin, Ya-Xun,Pan, Shen,Huang, Yangen,Xu, Xiu-Hua,Qing, Feng-Ling
, p. 6101 - 6109 (2018/05/29)
The efficient copper-catalyzed sulfenylation and selenylation of 2,3-allenoic acids with disulfides or diselenides were developed, respectively. These reactions proceeded through tandem radical addition/intramolecular cyclization processes, affording a series of 4-sulfenylated and 4-selenylated butenolides in moderate to excellent yields. Moreover, 4-sulfonylated butenolides could also be obtained by sulfenylation of 2,3-allenoic acids and subsequent oxidation. Further transformation of the sulfur- and selenium-containing butenolides afforded the corresponding furan derivatives in good yields.
TRANSFORMATION OF ALKYL ESTERS OF 4-OXO-3-PHENYLTHIOALKANOIC ACIDS INTO SUBSTITUTED 4-PHENYLTHIO-2(5H)-FURANONES AND 3-PHENYLTHIOFURANS
Kulinkovich, O. G.,Tishchenko, I. G.,Romashin, Yu. N.
, p. 255 - 258 (2007/10/02)
When the solutions of methyl and ethyl esters of 4-oxo-3-phenylthioalkanoic acids are boiled in toluene in the presence of p-toluene sulfonic acid, substituted 4-phenylthio-2(5H)-furanones are formed in good yields.In the reaction with diisobutylaluminum
A FACILE SYNTHESIS OF 4-PHENYLTHIO-2(5H)-FURANONE DERIVATIVES. SYNTHESIS OF SESQUIROSE FURAN AND BULLATENONE
Takahashi, Yasuhiro,Hagiwara, Hisahiro,Uda, Hisashi,Kosugi, Hiroshi
, p. 225 - 229 (2007/10/02)
Condensation of the dianions derived from E-3-(phenylthio)prop-2-enoic acid and its 2-methyl homologue with aldehydes and ketones provides a facile one step synthesis of 5-substituted 4-phenylthio-2(5H)-furanone derivatives.The application to the synthesi
