142044-85-7Relevant articles and documents
A solvent-free manganese(II) -catalyzed Clauson-Kaas protocol for the synthesis of N-aryl pyrroles under microwave irradiation
Rohit, Kizhakkekuttu Radhakrishnan,Meera, Gopinadh,Anilkumar, Gopinathan
supporting information, p. 194 - 200 (2021/10/12)
The first manganese-catalyzed modified Clauson-Kaas reaction for N-substituted pyrrole synthesis using 2,5-dimethoxytetrahydrofuran with variously substituted aromatic amines has been developed (up to 89% yield). This interesting neat strategy is free from additives including co-catalysts, ligands, and acids. Relatively low cost, environmentally benign, and handy Mn(NO3)2·4H2O is employed as the catalyst under microwave conditions with a very short reaction time (20?min). The above qualities attest to the green nature of this reaction.
One-Pot Synthesis of Pyrrolo[1,2- a ]quinoxaline Derivatives via a Copper-Catalyzed Aerobic Oxidative Domino Reaction
Liu, Huanhuan,Duan, Tiantian,Zhang, Zeyuan,Xie, Caixia,Ma, Chen
supporting information, p. 2932 - 2935 (2015/06/30)
A copper-catalyzed process for the synthesis of pyrrolo[1,2-a]quinoxalines from readily available α-amino acids and 1-(2-halophenyl)-1H-pyrroles is described. Different functional groups were well tolerated to give the corresponding products.
ANGIOTENSIN II ANTAGONIZING HETEROCYCLIC DERIVATIVES
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, (2008/06/13)
The invention relates to compounds of the formula STR1 wherein STR2 represents a condensed or uncondensed imidazolyl ring and the rest of the variables are as defined in the specification. They are angiotensin II antagonists useful for treating hypertension, etc..