928312-75-8Relevant academic research and scientific papers
High-yielding synthesis of Nefopam analogues (functionalized benzoxazocines) by sequential one-pot cascade operations
Ramachary, Dhevalapally B.,Narayana, Vidadala V.,Prasad, M. Shiva,Ramakumar, Kinthada
supporting information; experimental part, p. 3372 - 3378 (2010/01/06)
An efficient amine-/ruthenium-catalyzed three-step process for the synthesis of Nefopam analogues was achieved through combinations of cascade enamine amination/iso-aromatization/allylation and diene or enyne metathesis as key steps starting from functionalized Hagemann's esters. In this communication, we discovered the application of ruthenium-catalysis on olefins containing free amines without in situ formation of salts.
A new one-pot synthetic approach to the highly functionalized (Z)-2-(buta-1,3-dienyl)phenols and 2-methyl-2H-chromenes: Use of amine, ruthenium and base-catalysis
Ramachary, Dhevalapally B.,Narayana, Vidadala V.,Ramakumar, Kinthada
supporting information; experimental part, p. 3907 - 3911 (2009/04/07)
A practical and simple one-pot multi-catalysis process for the synthesis of highly substituted benzo[b]oxepines 5, (Z)-2-(buta-1,3-dienyl)phenols 6 and 2-methyl-2H-chromenes 7 from simple starting materials was achieved for the first time through ring-closing metathesis/base-induced ring opening/[1,7]-sigmatropic hydrogen shift reactions. The synthesis of privileged (Z)-2-(buta-1,3-dienyl)phenols 6 via base-induced ring opening of highly functionalized benzo[b]oxepines 5 is described. Wiley-VCH Verlag GmbH & Co. KGaA, 2008.
Organocatalytic cascade reactions based on push-pull dienamine platform: Synthesis of highly substituted anilines
Ramachary, Dhevalapally B.,Ramakumar, Kinthada,Narayana, Vidadala V.
, p. 1458 - 1463 (2007/10/03)
(Chemical Equation Presented) A practical and novel one-pot organocatalytic selective process for the cascade synthesis of highly substituted o-hydroxydiary lamines and o-pyrrolidin-1-yldiarylamines is reported. Direct combination of amine-catalyzed cascade Knoevenagel/Michael/aldol condensation/decarboxylation and cascade enamine amination/isoaromatization of alkyl acetoacetates, aldehydes, and nitrosoarenes furnished the highly functionalized anilines with high yields.
