Process for preparing 5-aroyl-2,3-dihydro-1H-pyrrolizine-1,1-dicarboxylates
申请人:SYNTEX (U.S.A.) INC.
公开号:EP0486807A1
公开(公告)日:1992-05-27
5-Aroyl-2,3-dihydro-1H-pyrrolizine-1,1-dicarboxylates of the formula
are prepared from 2-aroylpyrroles. Hydrolysis and monodecarboxylation of these compounds affords ketorolac and related compounds.
Groot, J. A. de; Steen, R. van der; Fokkens, R., Recueil des Travaux Chimiques des Pays-Bas, 1982, vol. 101, # 6, p. 219 - 223
作者:Groot, J. A. de、Steen, R. van der、Fokkens, R.、Lugtenburg, J.
DOI:——
日期:——
Regiospecific <i>C</i>-Acylation of Pyrroles and Indoles Using <i>N</i>-Acylbenzotriazoles
作者:Alan R. Katritzky、Kazuyuki Suzuki、Sandeep K. Singh、Hai-Ying He
DOI:10.1021/jo034187z
日期:2003.7.1
Reactions of pyrrole (2) or 1-methylpyrrole (4) with readily available N-acylbenzotriazoles 1a-g (RCOBt, where R = 4-tolyl, 4-nitrophenyl, 4-diethylaminophenyl, 2-furyl, 2-pyridyl, 2-indolyl, or 2-pyrrolyl) in the presence of TiCl(4) produced 2-acylpyrroles 3a-g and 5a-g in good to excellent yields. 1-Triisopropylsilylpyrrole (6) under the same conditions gave the respective 3-acylpyrroles 7a-g. Similarly