Zobrazeno 1 - 10
of 97
pro vyhledávání: '"Meena A"'
Publikováno v:
ChemInform. 47
SeO 2 mediated oxidative amidation of acetophenones, phenylacetylenes, and phenylacetaldehydes to α-ketoamides and aldehydes to amides is reported. Amidation selectively proceeds with secondary amines. α-Ketoamide derivatives of natural products 16
Publikováno v:
ChemInform. 46
An unprecedented rearrangement is detected during the attempt to open the cyclopropane ring in oxaspirohexanes for the preparation of psico-nucleoside synthons.
Autor:
Ashok Dongamanti, Srinivas Gundu, Meena Kumari Kotni, Prasad Ernala, Vijjulatha Manga, Mohan Gandhi Devulapally, Sridhar Balasubramanian, Vikas Kumar Aamate
Publikováno v:
ChemInform. 46
16 Tetracyclic compounds of type (III) are prepared and evaluated for their in vitro antibacterial activity.
Publikováno v:
ChemInform. 45
The title compounds (IV) are obtained by a solvent-free three-component condensation reaction between various aromatic aldehydes, ethyl acetoacetate, and urea/thiourea.
Autor:
Bashir Ahmad Dar, Rajinder K. Bamezai, Baldev Singh, Ram A. Vishwakarma, Snehil Singh, Nalini Pandey, Meena Sharma
Publikováno v:
ChemInform. 45
Replacement of aldehydes (I) by ketones or of malonitrile (II) by malonate derivatives yields the corresponding products only in trace amounts.
Autor:
Bashir Ahmad Dar, Baldev Singh, Mohammad Akbar Khuroo, Khursheed A. Bhat, Meena Sharma, Nisar Ahmad, Altaf Hussain, Syed Naseer Ahmad, Mohammad Arif Wagay
Publikováno v:
ChemInform. 44
It is proposed that the use of ultrasound irradiation is the major reason for the efficiency of the simple one-pot reaction of aromatic amines with triethyl orthoformate to afford formamidines and benzimidazole derivatives.
Autor:
Bashir Ahmad Dar, Sanjay K. Pandey, Sunil Kumar, Parduman R. Sharma, Baldev Singh, Akshay K. Sahoo, Meena Sharma, Mohammad Arif Wagay, Praveen Patidar
Publikováno v:
ChemInform. 44
The title compounds (IV) are obtained by an efficient and environmentally benign condensation of various aldehydes, ethylacetoacetate, and urea/thiourea using Fe-Al clay as catalyst.
Publikováno v:
ChemInform. 44
The ICl-promoted reaction of quinolines (I) introduces a 7-iodo substituent into the benzo[a]phenanthridine skeleton and allows further functionalization by Pd-catalyzed coupling reactions.
Autor:
Bashir Ahmad Dar, Amrinder Singh, Akshya K. Sahu, Baldev Singh, Praveen Patidar, Meena Sharma, Arup Chakraborty
Publikováno v:
ChemInform. 44
The simple three-component process allows an access to various title compounds as analogues of amino acids in good to excellent yields.
Publikováno v:
ChemInform. 43
Optimized reaction conditions are examined for the lipase-catalyzed regioselective monoacetylation of 3-aryloxy-1,2-propanediols (I).