54703-48-9Relevant academic research and scientific papers
Catalytic Use of Elemental Gallium for Carbon-Carbon Bond Formation
Qin, Bo,Schneider, Uwe
supporting information, p. 13119 - 13122 (2016/10/25)
The first catalytic use of Ga(0) in organic synthesis has been developed by using a Ag(I) cocatalyst, crownether ligation, and ultrasonic activation. Ga(I)-catalyzed C-C bond formations between allyl or allenyl boronic esters and acetals, ketals, or aminals have proceeded in high yields with essentially complete regio- and chemoselectivity. NMR spectroscopic analyses have revealed novel transient Ga(I) catalytic species, formed in situ through partial oxidation of Ga(0) and B-Ga transmetalation, respectively. The possibility of asymmetric Ga(I) catalysis has been demonstrated.
Host (Nanocavity of aluminium-incorporated mesoporous KIT-6)-guest (12-tungesto(molybdato) phosphoric acid) nanocomposite material: Efficient and reusable catalysts for the Hosomi-Sakurai three-component coupling reaction
Fazaeli, Razieh,Aliyan, Hamid,Naderi, Elham
, p. 745 - 754 (2013/07/25)
The immobilization of heteropoly acids (HPAs) into the Al-functionalized KIT-6 mesoporous molecular sieve has been carried out to see the effect of Al-KIT-6 as a host matrix on the HPA activities. These modified mesoporous molecular sieves are effective c
Cesium salt of tungstosilicic acid fabricated by nano-casting strategy: An efficient catalyst for the three-component Hosomi-Sakurai reaction
Fazaeli, Razieh,Aliyan, Hamid,Bagi, Mohammad Javad
experimental part, p. 677 - 688 (2012/06/18)
We have used SBA-15 silicas as hard templates for the nano-fabrication of Cs1.8H2.2SiW12O40 (CsHSiW) salt nanocrystal. The elimination by HF (or NaOH 90 °C) in the silica matrix from the composites occurred by a
Mesoporous aluminosilicate-catalyzed allylation of carbonyl compounds and acetals
Ito, Suguru,Hayashi, Akira,Komai, Hirotomo,Yamaguchi, Hitoshi,Kubota, Yoshihiro,Asami, Masatoshi
, p. 2081 - 2089 (2011/04/19)
A mesoporous aluminosilicate (Al-MCM-41) was found to be an effective heterogeneous catalyst for the reaction of both carbonyl compounds and acetals with allylsilanes to afford the corresponding homoallyl silyl ethers and homoallyl alkyl ethers, respectively. Both the mesoporous structure and the presence of aluminum moiety were indispensable for the high catalytic activity of Al-MCM-41. Moreover, Al-MCM-41 could catalyze the reaction of acetals chemoselectively in the presence of the corresponding carbonyl compounds. The solid acid catalyst Al-MCM-41 could be recovered easily by filtration and could be reused three times without a significant loss of catalytic activity.
An environmentally friendly synthesis of functionalized indanes using electrochemical cyclization of ortho-halo-substituted homoallyl ethers and esters
Olivero, Sandra,Perriot, Rodolphe,Du?ach, Elisabet,Baru, Ashvin R.,Bell, Eric D.,Mohan, Ram S.
, p. 2021 - 2026 (2008/02/05)
The electrochemical cyclization of a series of ortho-halo-substituted homoallyl ethers and esters to functionalized indanes catalyzed by Ni(II) catalyst precursors derived from Ni(cyclam)Br2, (cyclam = 1,4,8,11-tetraazacyclotetradecane) and Ni(tmc)Br2, (tmc = 1,4,8,11-tetramethyl-1,4,8,11-tetraazacyclotetradecane) is reported. The starting homoallyl ethers were synthesized using either a one-pot method for allylation of aldehydes or by direct allylation of the corresponding acetals using bismuth triflate as a catalyst. The remarkably low toxicity, low cost and ease of handling of bismuth salts coupled with the mild nature of the electrochemical procedure makes this approach to indane synthesis especially environmentally friendly and attractive. Georg Thieme Verlag Stuttgart.
Iron(III) chloride-catalyzed convenient one-pot synthesis of homoallyl benzyl ethers starting from aldehydes
Watahiki, Tsutomu,Akabane, Yusuke,Mori, Seiji,Oriyama, Takeshi
, p. 3045 - 3048 (2007/10/03)
(Matrix presented) Iron(III) chloride-catalyzed effective allylation reactions of acetals with allyltrimethylsilane proceeded smoothly in high to excellent yields. In addition, this method could be applied to the one-pot synthesis of homoallyl benzyl ethe
Substitution of α-azido ethers with Grignard reagents and its use in combinatorial chemistry
Baruah, Mukulesh,Bols, Mikael
, p. 509 - 512 (2007/10/03)
α-Azidobenzyl ethers were reacted with alkyl or arylGrignard reagents in toluene to produce α-alkylbenzyl or diarylmethyl ethers in 82-94% yield. α-Azidobenzyl ethers were also reacted with multicomponent Grignard reagents to produce libraries of α-alkylbenzyl ethers.
