132079-98-2Relevant academic research and scientific papers
Synthesis of Furanophane Derivatives through [8+2]-Cycloaddition of Dienylisobenzofurans and Alkynes
Luo, Yumei,Herndon, James W.,Cervantes-Lee, Francisco
, p. 12720 - 12721 (2003)
The coupling of various dienylisobenzofurans with dimethyl acetylenedicarboxylate (DMAD) has been examined. In most cases, this reaction proceeds via [8+2]-cycloaddition to afford furan-bridged decatetraene ring systems. The major competing reaction pathw
Decarboxylative and dehydrative coupling of dienoic acids and pentadienyl alcohols to form 1,3,6,8-tetraenes
Deiab, Ghina'A I. Abu,Al-Huniti, Mohammed H.,Dempsey Hyatt,Nagy, Emma E.,Gettys, Kristen E.,Sayed, Sommayah S.,Joliat, Christine M.,Daniel, Paige E.,Vummalaneni, Rupa M.,Morehead, Andrew T.,Sargent, Andrew L.,Croatt, Mitchell P.
, p. 384 - 392 (2017/03/15)
Dienoic acids and pentadienyl alcohols are coupled in a decarboxylative and dehydrative manner at ambient temperature using Pd(0) catalysis to generate 1,3,6,8-tetraenes. Contrary to related decarboxylative coupling reactions, an anion-stabilizing group i
Mechanistic twist of the [8+2] cycloadditions of dienylisobenzofurans and dimethyl acetylenedicarboxylate: Stepwise [8+2] versus [4+2]/[1,5]-vinyl shift mechanisms revealed through a theoretical and experimental study
Chen, Yuanyuan,Ye, Siyu,Jiao, Lei,Liang, Yong,Sinha-Mahapatra, Dilip K.,Herndon, James W.,Yu, Zhi-Xiang
, p. 10773 - 10784 (2008/03/13)
Recently, it was reported that both dienylfurans and dienylisobenzofurans could react with dimethyl acetylenedicarboxylate (DMAD) to give [8+2] cycloadducts. Understanding these [8+2] reactions will aid the design of additional [8+2] reactions, which have
Palladium-Catalyzed Cross-Coupling of β-(Methanesulfonyl)oxy Enones with Organostannanes
Hettrick, Christina M.,Kling, James K.,Scott, William J.
, p. 1489 - 1492 (2007/10/02)
β-(Methanesulfonyl)oxy enones, derived from 1,3-diones, cross-couple with vinylstannanes in 50-80percent yields when a substoichiometric amount of Pd(PPh3)4 and stoichiometric lithium bromide are used.Phenyltributylstannane affords low yields of cross-coupled product.Tetrabutyltin, tributyltin hydride, and ethynyltributyltin do not couple under the reaction conditions.The reaction is proposed to involve in situ formation of the β-bromo enone, oxidative addition to the Pd(0) catalyst, transmetalation, and reductive elimination to afford cross-coupled products.The analogous enol phosphates undergo coupling in low yields, the major product resulting from regeneration of the 1,3-dione.
