Showing papers by "Kalpattu K. Balasubramanian published in 1993"
TL;DR: In this paper, a chiral pyrano[2,3-b] benzopyrans were synthesized by reaction of 2-C-acetoxymethylglycals 1 and 2 with phenols under Lewis acid catalysis.
37 citations
TL;DR: A simple procedure for the C-alkylation of cyclic 1,3-diketones has been reported using Triton B as base in aqueous conditions.
18 citations
TL;DR: In this paper, the rearrangements of epimeric endo -and exo -dicyclopentadienyl vinyl ethers in lithium perchlorate were reported.
13 citations
TL;DR: In this paper, reaction of 1,5-anhydro-2-deoxy-2,formyl-3,4,6-tri-O-methyl-D-lyxo-hex-1-enitol with various nucleophiles under Lewis acid catalysis led to stereoselective C-3 substitution.
Abstract: Reaction of 1,5-anhydro-2-deoxy-2-formyl-3,4,6-tri-O-methyl-D-lyxo-hex-1-enitol 1 and its arabino epimer 3 with various nucleophiles under Lewis acid catalysis led to stereoselective C-3 substitution.
5 citations
5 citations
TL;DR: The Michael type addition of vinyl radicals on to the enone double bond was realized in Wieland-Miescher ketone derivatives leading to the formation of functionalised propellanes as mentioned in this paper.
3 citations
TL;DR: In this paper, reaction of 1,5-anhydro-2-deoxy-2,formyl-3,4,6-tri-O-methyl-D-lyxo-hex-1-enitol with various nucleophiles under Lewis acid catalysis led to stereoselective C-3 substitution.
Abstract: Reaction of 1,5-anhydro-2-deoxy-2-formyl-3,4,6-tri-O-methyl-D-lyxo-hex-1-enitol 1 and its arabino epimer 3 with various nucleophiles under Lewis acid catalysis led to stereoselective C-3 substitution.
TL;DR: In this article, the rearrangements of epimeric endo -and exo -dicyclopentadienyl vinyl ethers in lithium perchlorate were reported.
Abstract: The rearrangements of epimeric endo - and exo - dicyclopentadienyl vinyl ethers in lithium perchlorate in reported and the mechanism of the rearrangement in confirmed using deuterium labelling.
TL;DR: Polarographic and cyclic voltammetric studies of bromohydrins in acetonitrile showed a single diffusion-limited two-electron irreversible cathodic wave/peak followed by chemical transformations as discussed by the authors.