40948-30-9Relevant academic research and scientific papers
Highly efficient preparation of amides from aminium carboxylates using N-(p-toluenesulfonyl) imidazole
Behrouz, Somayeh,Rad, Mohammad Navid Soltani,Forouhari, Elham
, p. 101 - 106 (2016/03/08)
Treatment of aminium carboxylates with N-(p-toluenesulfonyl)imidazole in the presence of triethylamine in DMF at 100 °C afforded the corresponding amides in good to excellent yields. N-(p-Toluenesulfonyl)imidazole proved to be a highly efficient coupling reagent for the preparation of numerous structurally diverse primary, secondary and tertiary amides.
A mild chemospecific reductive dehalogenation of ethylaminobenzamides with lithium aluminum hydride
Hendrix, James A.,Stefany, David W.
, p. 6749 - 6752 (2007/10/03)
A mild reduction of ortho-fluoro benzamides was discovered using LAH. The reaction proceeds cleanly and in moderate yields. The scope of the reaction is explored and a mechanism is proposed. A two carbon spacer between the amide and a 3°amine is optimal for this chelation controlled reaction.
Preparation of esters and amides from carboxylic acids by activation with dialkyl phosphite-carbon tetrachloride mixture
Jaszay, Zsuzsa M.,Petnehazy, Imre,Toke, Laszlo
, p. 2761 - 2768 (2007/10/03)
A simple one pot phase transfer catalytic method is described for the synthesis of carboxylic amides and esters from carboxylic acids and amines or alcohols, respectively. For the activation of the carboxylic acids 'in situ' generated phosphoric acid diester chlorides were applied.
Aminopropylaminobleomycin derivatives and process for preparation thereof
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, (2008/06/13)
An aminopropylaminobleomycin represented by the following formula or a salt thereof, which is minimized in side effects such as pulmonary toxicity: wherein [BX] represents the acyl group of bleomycinic acid whose formula differs from that of bleomycin acid by the removal of the hydroxyl group from the carboxyl group of said acid; A represents a group of the general formula STR1 wherein R1 is a lower alkyl or benzyl, R2 is a lower alkyl or benzyl, R is a lower alkylene, and n is 0 or 1; and B represents a group of the formula STR2 wherein (i) R3 is hydrogen and R4 is (a) benzyl substituted by one or more halogen atoms, provided that the benzyl is substituted by two halogen atoms when R1 is lower alkyl, (b) benzyl substituted by cyano, two or more alkoxy groups or two or more benzyloxy groups, (c) lower alkyl substituted by cycloalkyl or anthranyl, (d) phenylethyl substituted by one or more halogen atoms, or (e) diphenylethyl; or (ii) both R3 and R4 are benzyl which may be substituted by one or more (a) benzyloxy groups, (b) ring substituted benzyloxy groups in which the ring substituents may be one or more halogen atoms, lower alkoxy groups or benzyloxy groups, or (c) cycloalkylmethoxy groups; and a process for the preparation thereof.
