Efficient conversion of acids and esters to amides and transamidation of primary amides using OSU-6
作者:Baskar Nammalwar、Nagendra Prasad Muddala、Field M. Watts、Richard A. Bunce
DOI:10.1016/j.tet.2015.10.016
日期:2015.12
with strong Bronsted acid properties, has been used to promote the high-yield conversion of carboxylic acids and esters to carboxamides as well as transamidations of primary amides in a one-pot solventless approach. A metal-free heterogeneous catalyst that promotes all of these processes has not been previously reported. OSU-6 enables these transformations to proceed in shorter times and at lower temperatures
Transformation of Contact-Explosives Primary Amines and Iodine(III) into a Successful Chemical Reaction under Solvent-Free Ball Milling Conditions
作者:Tapas Kumar Achar、Prasenjit Mal
DOI:10.1002/adsc.201500914
日期:2015.12.14
Any synthetic transformation using contact-explosivesprimaryamines and hypervalent iodine(III) (phenyliodine diacetate) in constrained media (extreme conditions) is practically impossible. Herein, we report a method of controlling the explosion into a successfulchemicalreaction using the acid-salt NaHSO4. As a proof-of-concept, we considered mechanochemical (ball-milling) cross dehydrogenative
A sustainable metal and base-free direct amidation of esters using water as a green solvent
作者:Nanthini Rajendran、Kiruthigadevi Kamaraj、Saranya Janakiraman、Mary Saral、Pierre H. Dixneuf、Charles Beromeo Bheeter
DOI:10.1039/d3ra02637j
日期:——
Herein, we report a simple and efficient synthetic approach for direct amidation of esters via C(acyl)–O bond cleavage without any additional reagents or catalysts, using only water as a green solvent. Subsequently, the reaction byproduct is recovered and utilized for the next phase of ester synthesis. This method emphasized metal-free, additive-free, and base-free characteristics making it a new,
REMEDIES FOR STRESS DISEASES COMPRISING MITOCHONDRIAL BENZODIAZEPINE RECEPTOR ANTAGONISTS
申请人:ONO PHARMACEUTICAL CO., LTD.
公开号:EP1438973A1
公开(公告)日:2004-07-21
A pharmaceutical composition for the prophylaxis and/or treatment of diseases induced, exacerbated or reignited by stressors comprising the compound of formula (I)
wherein all symbols have the same meanings as described in the specification, etc. as an active ingredient.
Remedies for stress diseases comprising mitochondrial benzodiazepine receptor antagonists
申请人:Seko Takuya
公开号:US20050009812A1
公开(公告)日:2005-01-13
A pharmaceutical composition for the prophylaxis and/or treatment of diseases induced, exacerbated or reignited by stressors comprising the compound of formula (I)
wherein all symbols have the same meanings as described in the specification, etc. as an active ingredient.