Study of the microwave-assisted hydrolysis of nitriles and esters and the implementation of this system in rapid microwave-assisted Pd-catalyzed amination
摘要:
Microwave-assisted hydrolysis of benzonitriles and methyl benzoates has been studied using a toluene/concd aq KOH two phase system in the presence and absence of phase transfer catalyst. Conditions to allow and avoid smooth hydrolysis could be identified. Based on the latter, the first microwave protocol which allows the rapid Pd-catalyzed amination of aliphatic amines with chlorobenzenes containing sensitive functional groups has been developed. (c) 2008 Elsevier Ltd. All rights reserved.
MANUFACTURE PROCESS OF N-(5-CHLOROSALICYLOYL)-8-AMINOCAPRYLIC ACID
申请人:Novartis AG
公开号:EP2955171A1
公开(公告)日:2015-12-16
The present invention relates to a method of preparing N-(5-chlorosalicyloyl)-8- ami-nocaprylic acid (5-CNAC) and its corresponding disodium monohydrate.
Study of the microwave-assisted hydrolysis of nitriles and esters and the implementation of this system in rapid microwave-assisted Pd-catalyzed amination
作者:Gitte Van Baelen、Bert U.W. Maes
DOI:10.1016/j.tet.2008.03.028
日期:2008.6
Microwave-assisted hydrolysis of benzonitriles and methyl benzoates has been studied using a toluene/concd aq KOH two phase system in the presence and absence of phase transfer catalyst. Conditions to allow and avoid smooth hydrolysis could be identified. Based on the latter, the first microwave protocol which allows the rapid Pd-catalyzed amination of aliphatic amines with chlorobenzenes containing sensitive functional groups has been developed. (c) 2008 Elsevier Ltd. All rights reserved.
Synthesis of C(2)Halomethyl Substituted Derivatives of 2,3-Dihydro-1,3-benzoxaz-4-ones
作者:Y. Fang、D. Leysen、H. C. J. Ottenheijm
DOI:10.1080/00397919308013788
日期:1993.8
alkyl, R3 = CH2X). The standard procedure for the preparation of this class of compounds is the condensation of salicylamide derivatives 1 with the proper aldehyde1-5 and ketone5,6. Usually, hydrochloric acid or sulphuric acid is used as catalyst and the water formed is cocornmittently removed using a dehydrating agent or by azeotropic destillation7. These procedures did not serve our purpose as the