IR @ Goa University

Browsing School of Chemical Sciences by Author "Amonkar, C.P."

Browsing School of Chemical Sciences by Author "Amonkar, C.P."

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  • Convenient synthesis of 2, 2-dimethyl-3, 4-dihydro-2H-parano [2,3- b]quinolines 
    Parsekar, S.B.; Amonkar, C.P.; Parameswaran, P.S.; Tilve, S.G. (Synthetic Communications. 40(21); 2010; 3251-3258.)
    A convenient general synthesis of 2,2-dimethyl-3,4-dihydro-2H-pyrano[2,3-b]quinolines using the Wittig reaction is described.The o-nitrobenzaldehydes (1a-d) on reaction with phosphorane 2 provided (E)-ethyl-alpha-(2,2-di ...
  • A convenient synthesis of gamma-methyl alpha-(alkylidene)-gamma-butyrolactones 
    Shet, J.B.; Amonkar, C.P.; Nadkarni, V.S.; Tilve, S.G. (Indian Journal of Chemistry Section B-Organic Chemistry Including Medicinal Chemistry. 44(7); 2005; 1505-1508.)
    gamma-Methyl-alpha-(alkylidene substituted)-gamma-butyrolactones have been synthesized in two steps. The anion of allyl phosphonate 1 is condensed with different carbonyl compounds to afford alpha,beta-unsaturated esters ...
  • Convenient synthesis of volatile Streptomyces lactones 
    Amonkar, C.P.; Tilve, S.G.; Parameswaran, P.S. (Synthesis-Stuttgart. (14); 2005; 2341-2344.)
    A convenient three-step synthetic approach towards 3-alkyl-5-methyl-2[5H] furanones is described. The steps involved in the synthesis are domino primary alcohol oxidation-Wittig reaction, acid-catalysed lactonisation and ...
  • An efficient synthesis of alpha-(alkylidene)-5, 5-dimethyl-delta-lactones 
    Parsekar, S.B.; Amonkar, C.P.; Nadkarni, V.S.; Tilve, S.G. (Indian Journal of Chemistry Section B-Organic Chemistry Including Medicinal Chemistry. 48(9); 2009; 1333-1336.)
    2-(-Alkylidene substituted)-5,5-dimethyl-delta-lactones have been synthesized in two steps. The stable phosphorane carboethoxy-methyledene (alpha-prenyl)-triphenylphosphorane is condensed with different carbonyl compounds ...
  • Expedient synthesis of 2-carboethoxy-4-methylnaphthalenes 
    Amonkar, C.P.; Patre, R.R.; Tilve, S.G. (Synthetic Communications. 36(1); 2006; 13-20.)
    A three-step synthesis of 2-carboethoxy-4-methylnaphthalenes 7a-d from aryl aldehydes is described.

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