[EN] DE-C2-SYMMETRIC DIPHENYLAMINE-TYPE CHIRAL BISOXAZOLINE LIGAND, SYNTHESIS METHOD THEREFOR AND USE THEREOF<br/>[FR] LIGAND BISOXAZOLINE CHIRAL DE TYPE DE-C2-DIPHÉNYLAMINE SYMÉTRIQUE, SON PROCÉDÉ DE SYNTHÈSE ET SON UTILISATION<br/>[ZH] 一种去C2-对称性二苯胺型手性双噁唑啉配体及其合成方法与应用
Use of N,N-dimethylformamide as solvent in the synthesis of N-phenylanthranilic acids
作者:Rolando F. Pellón、Ramón Carrasco、Tania Márquez、Taimirys Mamposo
DOI:10.1016/s0040-4039(97)01138-6
日期:1997.7
It is known that N-phenylanthranilic acids can be synthesized by Ullmann-Goldberg condensation in different conditions. This paper reports some parameters which influence the condensation and reports a general procedure for this reaction using N,N-Dimethylformamide as solvent. (C) 1997 Published by Elsevier Science Ltd.
Stewart, Georgina M.; Rewcastle, Gordon W.; Denny, William A., Australian Journal of Chemistry, 1984, vol. 37, # 9, p. 1939 - 1950
作者:Stewart, Georgina M.、Rewcastle, Gordon W.、Denny, William A.
DOI:——
日期:——
Studies on Mexican Cactaceae. II. Opuntia megarrhiza, a poorly known endemic from San Luis Potosí, Mexico
作者:Héctor M. Hernández、Carlos Gómez-Hinostrosa、Rolando T. Bárcenas
DOI:10.1007/bf02809653
日期:2001.10
Opuntia megarrhiza Rose (Cactaceae) is a species endemic to central San Luis Potosi,, Mexico that, since originally described in 1906, has remained poorly understood. A comprehensive morphological description is presented and its presumed taxonomic affinity with O. chaffeyi is discussed. General accounts of its distribution, ecology, uses, and conservation status are presented.