665002-69-7Relevant academic research and scientific papers
Synthesis and structure of an air-stable bis(isopropylcyclopentadienyl) zirconium perfluorooctanesulfonate and its catalyzed benzylation of 1,3-dicarbonyl derivatives with alcohols
Zhang, Xiaohong,Qiu, Renhua,Zhou, Congcong,Yu, Jingxing,Li, Ningbo,Yin, Shuangfeng,Xu, Xinhua
, p. 1011 - 1017 (2015/01/30)
An air-stable uninuclear complex of bis(isopropylcyclopentadienyl) zirconium perfluorooctane sulfonate (1a·H2O·3THF) was successfully synthesized by the reaction of (i-PrCp)2ZrCl2 with C17SO3Ag. The c
Fe(ClO4)3·×H2O-Catalyzed direct C-C bond forming reactions between secondary benzylic alcohols with different types of nucleophiles
Thirupathi, Ponnaboina,Kim, Sung Soo
experimental part, p. 2995 - 3003 (2010/06/14)
Fe(ClO4)3·×H2O as a highly effective catalyst for benzylation of 1,3-dikones, β-ketoesters, 1,3-diesters, electron-rich arenes and heteroarenes and 4-hydroxycoumarin with various benzylic alcohols is described. The usefulness of this procedure is shown by a synthesis of bis-symmetrical triarylmethanes and one step synthesis of an anti-coagulant compound 4-hydroxy-3-(1,2,3,4-tetrahydronaphthalen-1-yl)-2H-chromen-2-one (Coumatetralyl (B)). The advantages of this protocol are broad scope, mild conditions, use of inexpensive catalyst and simplicity of operation since water is the only side product.
Synthesis of functionalized triarylmethanes by combination of FeCl3-catalyzed benzylations of acetylacetone with [3+3] cyclocondensations
Khera, Rasheed Ahmad,Ullah, Ihsan,Ahmad, Rasheed,Riahi, Abdolmajid,Hung, Nguyen Thai,Sher, Muhammad,Villinger, Alexander,Fischer, Christine,Langer, Peter
experimental part, p. 1643 - 1652 (2010/04/04)
Functionalized triarylmethanes are prepared in two steps by FeCl3-catalyzed benzylation of acetylacetone to give 3-(diarylmethyl)pentane-2,4-diones and subsequent formal [3+3] cyclization of the latter with 1,3-bis(trimethylsilyloxy)-1,3-dienes
Synthesis of functionalized triarylmethanes based on a 'FeCl3-catalyzed benzylation/[3+3] cyclocondensation' strategy
Ahmad, Rasheed,Riahi, Abdolmajid,Langer, Peter
experimental part, p. 1490 - 1492 (2009/06/18)
Functionalized triarylmethanes are prepared in two steps by FeCl3-catalyzed benzylation of acetylacetone to give 3-(diarylmethyl)pentane-2,4-diones and subsequent formal [3+3] cyclization of the latter with 1,3-bis(trimethylsilyloxy)-1,3-dienes
Bronsted acid-catalyzed benzylation of 1,3-dicarbonyl derivatives
Sanz, Roberto,Miguel, Delia,Martinez, Alberto,Alvarez-Gutierrez, Julia M.,Rodriguez, Felix
, p. 2027 - 2030 (2008/02/02)
The direct alkylation of 1,3-dicarbonyl compounds with benzylic alcohols is shown to be efficiently catalyzed by simple Bronsted acids such as triflic acid (TfOH) and p-toluenesulfonic acid (PTS) to give rise to monoalkylated dicarbonyl derivatives in high yields. In the absence of the nucleophile, substituted alkenes, generated through a formal dimerization reaction, are obtained. The reactions are carried out in air using undried solvents, with water being the only side product of the process.
