Results 101 to 110 of about 5,649 (226)

EFFICIENT SYNTHESIS OF alpha,beta-DIAMINO ACID DERIVATIVES BY In(III)-CATALYZED REGIOSELECTIVE ADDITION OF AMINES TO AZIRIDINES

, 2012
An efficient catalytic method for the synthesis of alpha,beta-diamino acid derivatives has been developed via regioselective ring opening of aziridines by amines in the presence of indium( III) salt under very mild reaction conditions.
Cheng, Ming, Yang, Xiang-Yu, Zhang, Qiang, Wei, Wei, Ji, JX (reprint author), Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China., Ji, Jian-Xin, Hu, Xiao-Yu   +6 more
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Synthesis of Enantiopure Imidazolines Through a Ritter Reaction of 2‐(1‐Aminoalkyl)aziridines with Nitriles.

, 2004
The Ritter reaction of enantiopure 2-(1-aminoalkyl)aziridines with different nitriles afford enantiopure tetrasubstituted imidazolines . The opening of the aziridine ring takes place with total regio- and stereoselectivity.
Jose Ramon Suarez, Riego, Estela, Jose M. Concellon, Santiago Garcia‐Granda, M. Rosario Diaz, Díaz, M. Rosario, Estela Riego, Concellón, José M., García-Granda, Santiago, Suárez Álvarez, José Ramón   +9 more
core   +1 more source

Unexplored Nucleophilic Ring Opening of Aziridines

Molecules, 2010
The reactivity of dianions of carboxylic acids towards aziridines has been studied. Although, a similar reactivity to that of enolates from ketones, esters or amides has been observed, the method directly yields g-aminoacids in one step.
Ana María Costero, Salvador Gil, Margarita Parra, Pablo Rodríguez   +3 more
doaj  

Self-optimisation and model-based design of experiments for developing a C–H activation flow process

Beilstein Journal of Organic Chemistry, 2017
A recently described C(sp3)–H activation reaction to synthesise aziridines was used as a model reaction to demonstrate the methodology of developing a process model using model-based design of experiments (MBDoE) and self-optimisation approaches in flow.
Alexander Echtermeyer, Yehia Amar, Jacek Zakrzewski, Alexei Lapkin   +3 more
doaj   +1 more source

Asymmetric Synthesis via Chiral Aziridines

, 1999
A review of the uses of chiral aziridines in asymmetric ...
Tanner, David Ackland
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Y(OTf)₃-Salazin-Catalyzed Asymmetric Aldol Condensation

Molecules
The chiral aziridine-containing vicinal iminophenol tridentate ligands (named salazins) are a class of readily prepared chiral ligands from enantiopure aziridines and salicylaldehydes.
Chengzhuo Wang, Ning Chen, Zhanhui Yang, Jiaxi Xu   +3 more
doaj   +1 more source

New syntheses of aziridines and azirines.

, 1970
The work presented in this thesis concerns the oxidation of N-amino compounds and the interception of the reactive intermediates, the postulated amino-nitrenes. The Introduction has been divided into three parts concerning (1) the synthesis of aziridines
David John. Anderson (7700939)
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Synthesis and rearrangement of 1,2,3-Triheteroaryl(aryl)-substituted Aziridines

, 2007
Aziridines carrying three (or two) heteroaryl groups with electron-withdrawing effects were synthesised with sufficient diastereoselectivity. The cis aziridines are susceptible to ring opening and rearrangement when the formation of secondary enamines
Tullio Pilati, T. PILATI, Emanuela Pindinelli, Luigino Troisi, TROISI, Luigino, PINDINELLI, EMANUELA   +5 more
core   +1 more source

A Simpler Route for Making Nitrogen-Alkene Rings [PDF]

, 2014
Aggarwal, Varinder K., Turkmen, Yunus
core   +1 more source

Photochemical synthesis and functional transformations of bicyclic vinyl aziridines [PDF]

, 2015
Aziridines, a class of organic compounds containing a three membered heterocycle with a nitrogen atom, are extremely valuable molecules in organic and medicinal chemistry.
Vale, João Rafael Campos do
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