Showing papers by "Kalpattu K. Balasubramanian published in 1992"
TL;DR: In this article, a facile synthesis of 2,3-unsaturated aryl glycosides by BF 3.Et 2 O mediated O to C transformation was reported.
22 citations
TL;DR: Synthesis of spirobenzofurans based on photochemical ''δ'' hydrogen abstraction was reported in this article, where the synthesis was carried out in a laboratory environment.
15 citations
DOI•
01 Dec 1992TL;DR: In this article, the photochemical behavior of 3,4-epoxy-3, 4-dihydro-2H-1-benzopyrans, intermediates in the synthesis of pterocarpans, has been studied in various solvents.
Abstract: Photochemical behaviour of 3,4-epoxy-3,4-dihydro-2H-1-benzopyrans, intermediates in the synthesis of pterocarpans, has been studied in various solvents. While ring contraction leading to 2,3-dihydrobenzofurans through a photodecarbonylation process was observed in cyclohexane, photoisomerisation leading to 3-chromanones was observed in acetone. This study has also been extended to antijuvenile hormone precocene(I) oxide.
TL;DR: Synthesis of spirobenzofurans based on photochemical ''δ'' hydrogen abstraction was reported in this article, where the synthesis was carried out in a laboratory environment.
Abstract: Synthesis of spirobenzofurans based on photochemical ‘δ’ hydrogen abstraction is reported.
TL;DR: In this article, a simple and high yielding route to 3-alkyl-3-phenyl-sulphonyl-4-chromanones has been achieved from 3-kalkyl, 3-pphenyl, and 3-naphyl, l-4 chromanones.
Abstract: A simple and high yielding route to 3-alkylchromanones and 3-alkylchromones has been achieved from 3-alkyl-3-phenyl-sulphonyl-4-chromanones. A simple and high yielding route to 3-alkylchromanones and 3-alkylchromones has been achieved from 3-alkyl, 3-phenylsulphonyl-4-chromanones.