An Iron-Catalyzed Direct Approach to Amides from Benzyl Azides via C–C Bond Cleavage
摘要:
A novel iron-catalyzed transformation of benzyl azides to give the corresponding amides via C-C bond cleavage under mild reaction conditions is developed. This method provides a new synthetic tool for the construction of amides and the opportunity to accomplish C-C functionalization under mild conditions.
Directsynthesis of organicazidesfrom alcohols was developed. Azide transfer of 2-azido-1,3-dimethylimidazoliniumhexafluorophosphate (ADMP) to alcohols proceeds to give the corresponding azides under mild reaction conditions, which were easily isolated because the byproducts are highly soluble in water.
作者:Danny C. Lenstra、Peter E. Lenting、Jasmin Mecinović
DOI:10.1039/c8gc02136h
日期:——
A highly efficient and sustainable catalytic Staudingerreduction for the conversion of organic azides to amines in excellent yields has been developed. The reaction displays excellent functional group tolerance to functionalities that are otherwise prone to reduction, such as sulfones, esters, amides, ketones, nitriles, alkenes, and benzyl ethers. The green nature of the reaction is exemplified by
Photoexcited arylketones catalyze the direct chlorination of C(sp3)–H groups by N- chlorosuccinimide. Acetophenone is the most effective catalyst for functionalization of unactivated C–H groups while benzophenone provides better yields for benzylic C–H functionalization. Activation of both acetophenone and benzophenone can be achieved by irradiation with a household compact fluorescent lamp. This light-dependent
A mild and efficient method for preparation of azides from alcohols using acidic ionic liquid [H-NMP]HSO4
作者:Abdol R. Hajipour、Asiyeh Rajaei、Arnold E. Ruoho
DOI:10.1016/j.tetlet.2008.11.111
日期:2009.2
We report here an efficientmethod for the synthesis and characterization of [H-NMP]HSO4 and its application as an efficient catalyst and solvent for preparation of azides from corresponding alcohols under mild conditions. This processor showed high chemoselectivity for conversion of various alcohols to their corresponding azides.
Exploiting the Nucleophilicity of NH Imines: Synthesis of Enamides from Alkyl Azides and Acid Anhydrides
作者:Junghoon Han、Mina Jeon、Han Kyu Pak、Young Ho Rhee、Jaiwook Park
DOI:10.1002/adsc.201400584
日期:2014.9.15
The nucleophilicity of N‐unsubstituted imines, which were generated from alkyl azides by a ruthenium‐catalyzedreaction, was investigated in the reaction with acid anhydrides. The initial products were N‐acylimines, which isomerized to the corresponding enamides. Heating or triethylamine facilitated the isomerization of N‐acylimines that are stable at room temperature. A wide range of acyclic and cyclic