A Fast Procedure for the Preparation of Amides/Peptides from Carboxylic Acids and Azides via Two Redox Reactions: Application to the Synthesis of Methionine Enkephalin
作者:Sunil K. Ghosh、Rekha Verma、Usha Ghosh、Vasant R. Mamdapur
DOI:10.1246/bcsj.69.1705
日期:1996.6
A one-pot self regulated approach for the synthesis of amides/peptides based on two reduction–oxidation (redox) reactions has been described. The primary and secondary amides/peptides are made by using azidotrimethylsilane and alkyl azides/α-azido acid derivatives respectively as the direct source of amine components. Benzeneselenol, generated in the reaction medium during carboxyl activation, has
Continuous flow thermolysis of azidoacrylates for the synthesis of heterocycles and pharmaceutical intermediates
作者:Alexander G. O'Brien、François Lévesque、Peter H. Seeberger
DOI:10.1039/c0cc04481d
日期:——
An efficient, safe and scalable procedure for the continuous flow thermolysis of azidoacrylates to yield indoles has been developed and was applied to the synthesis of related heterocycles. The scalability of the process was demonstrated in the continuous flow synthesis of a precursor to the DAAO inhibitor 4H-furo[3,2-b]pyrrole-5-carboxylic acid.
A porous metal–organic cage constructed from dirhodium paddle-wheels: synthesis, structure and catalysis
作者:Lianfen Chen、Tao Yang、Hao Cui、Tao Cai、Li Zhang、Cheng-Yong Su
DOI:10.1039/c5ta05592j
日期:——
A porous metal–organic cage (MOC-Rh-1) with Rh–Rh bonds has been prepared, which can act as a heterogeneous catalyst and promote the intramolecular C–H amination of azides.
Iron(II) Triflate as a Catalyst for the Synthesis of Indoles by Intramolecular C−H Amination
作者:Julien Bonnamour、Carsten Bolm
DOI:10.1021/ol2004066
日期:2011.4.15
A practical iron-catalyzed intramolecular C−H amination reaction and its application in the synthesis of indole derivatives are presented. As a catalyst, commercially available iron(II) triflate is used.
Derivatives of Azidocinnamic Acid in the Synthesis of 2-Amino-4-Arylidene-1H-Imidazol-5(4H)-Ones
作者:Alexander Yu. Smirnov、Nadezhda S. Baleeva、Snezhana O. Zaitseva、Konstantin S. Mineev、Mikhail S. Baranov
DOI:10.1007/s10593-018-2318-7
日期:2018.6
A method for the synthesis of 2-amino-4-arylidene-1H-imidazol-5(4H)-ones is proposed based on the reaction of various aromatic isocyanates with phosphazenes derived from azidocinnamic acid amides. The spectral-luminescent properties of the obtained compounds were studied. The products were shown to possess the (Z)-configuration with the help of two-dimensional spectroscopy.