range of monofluorocyclopropane derivatives. So far, fluoromethylsulfonium salts have displayed the broadest scope for direct fluoromethylene transfer. In contrast to more commonly used fluorohalomethanes or freon derivatives, diarylfluoromethylsulfonium salts are benchstable, easy-to use reagents useful for the direct transfer of a fluoromethylene group to alkenes giving access to the challenging products
HUTCHINS R. O.; ROTSTEIN D.; NATALE N.; FANELLI J., J. ORG. CHEM. <JOCE-AH>, 1976, 41, NO 20, 3328-3329
作者:HUTCHINS R. O.、 ROTSTEIN D.、 NATALE N.、 FANELLI J.
DOI:——
日期:——
The selective reduction of .alpha.,.beta.-unsaturated esters, nitriles and nitro compounds with sodium cyanoborohydride
作者:Robert O. Hutchins、David Rotstein、Nicholas Natale、Joseph Fanelli、Donald Dimmel
DOI:10.1021/jo00882a029
日期:1976.10
A Facile, Efficient and Solvent-Free Titanium (IV) Ethoxide Catalysed Knoevenagel Condensation of Aldehydes and Active Methylenes
作者:Manjunatha M. Ramaiah、Nanjunda Swamy Shivananju、Priya Babu Shubha
DOI:10.2174/1570178616666190401194641
日期:2020.1.7
convenient method for the preparation of α,β-unsaturated compounds using both conventional and microwave irradiation methods. An efficient and solvent free Knoevenagel condensation between aldehydes and active methylenes was developed using titanium ethoxide. The procedure proved to be successful with a wide range of substrates such as aromatic, aliphatic and heterocyclic aldehydes and various active methylenes