70946-01-9Relevant academic research and scientific papers
A regioselective synthesis of dimethyl phthalide-3-phosphonates
Watanabe,Ijichi,Furukawa
, p. 94 - 98 (2007/10/02)
Dimethyl phthalide-3-phosphonates having various substituents on the benzene ring were regioselectively synthesized by the reaction of N,N-diethyl-2-formylbenzamides with tert-butyldimethylsilyl dimethyl phosphite followed by treatment with methanesulfonic acid. N,N-Diethyl-2-formylbenzamides were regioselectively prepared by ortho lithiation-formylation of the corresponding benzamides.
Directed ortho metalation of n,n-diethyl benzamides. Methodology and regiospecific synthesis of useful contiguously tri- and tetra-substituted oxygenated aromatics, phthalides and phthalic anhydrides
De Silva,Reed,Billedeau,Wang,Norris,Snieckus
, p. 4863 - 4878 (2007/10/02)
Full experimental details for the directed ortho metalation approch to a variety of simple ortho-substituted N,N-diethyl benzamides (Table 1) and contiguously 1,2,3- and 1,2,3,4-substituted benzamides (Tables 2) are given. The efficient conversion of these benzamides (6, 10, 12, 13, 18, 19) into phthalides (9a-b, 16b-c, 17) and phthalic anhydrides (8,16a), compounds previously available by demanding, classical methods, is detailed. A short synthesis of iso-ochracinic acid (27) is described.
Ortho-effects in 1-(2-Aminomethylaryl)-1-buten-3-ones and Their Hydrogenation Products, III: 2-(Aminomethyl)phenylmethylenacetones and Their Hydrogenation Products, II
Burgemeister, Thomas,Mayer, Klaus K.,Poettinger, Theodor,Wiegrebe, Wolfgang
, p. 674 - 685 (2007/10/02)
The preparations of the phenylmethylenacetones and their (deuterated) hydrogenation products (compounds 2-28) are described; anomalies in some of the (13)C-NMR spectra are explained by increment calculations.
