Alicyclic diamines, alicyclic diisocyanates and polyisocyanato-isocyanurates and method for the preparation thereof
申请人:MITSUI TOATSU CHEMICALS, Inc.
公开号:EP0394058A1
公开(公告)日:1990-10-24
Herein disclosed are an α-(aminocydonexyl)alkylamine represented by the following general formula (II):
wherein R represents hydrogen atom or a lower alkyl group having 1 to 5 carbon atoms, provided that the amino group bonded to the cyclohexyl group may be in either of the 2-, 3- and 4-positions and a method for preparing it; an a-(isocyanatocyclohexyl)alkylisocyanate of Formula (II) wherein the amino groups are replaced with isocyanato groups and a method for preparing it; polyisocyanato-isocyanurate represented by the following general formula (IV):
wherein Ri, R2 and R3 may be the same or different and each represents a group represented by the following general formula:
wherein R represents hydrogen atom or an alkyl group having 1 to 5 carbon atoms and n is an integer ranging from 1 to 5 and a method for preparing it; and a resin obtained by polymerizing an organic polyisocyanate containing not lower than 10% by weight of the polyisocyanato-isocyanurate represented by Formula (IV) and a compound having at least two active hydrogen atoms as well as a resin composition for coating materials which comprises the resin.
Kulkarni, Sheshgiri N.; Bhamare, N. K.; Kamath, H. V., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1987, vol. 26, # 1-12, p. 168 - 170
作者:Kulkarni, Sheshgiri N.、Bhamare, N. K.、Kamath, H. V.
DOI:——
日期:——
Aldol Condensation of Esters with Ketones or Aldehydes to Form β-Hydroxy Esters by Lithium Amide. Comparison with the Reformatsky Reaction<sup>1</sup>
作者:Charles R. Hauser、W. H. Puterbaugh
DOI:10.1021/ja01101a016
日期:1953.3
A simple synthetic protocol for oxidation of alkyl-arenes into ketones using a combination of HBr–H2O2
作者:Abu T. Khan、Tasneem Parvin、Lokman H. Choudhury、Subrata Ghosh
DOI:10.1016/j.tetlet.2007.01.172
日期:2007.3
A wide variety of alkyl- and cycloalkyl-arenes undergo benzylic C-H oxidation by employing a combination of 48% hydrogen bromide and 30% hydrogen peroxide in dichloromethane at room temperature. In addition, a chemoselective oxidation at the benzylic position is feasible by deactivating the aromatic ring using the same combination. (c) 2007 Elsevier Ltd. All rights reserved.
Sugimoto et al., Yakugaku Zasshi/Journal of the Pharmaceutical Society of Japan, 1951, vol. 71, p. 1161