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- W2045491030 abstract "An efficient route to 2′,3′-dihydro-2′-thioxospiro[indole-3,6′-[1,3]thiazin]-2(1H)-one derivatives is described. It involves the reaction of isatine, 1-phenyl-2-(1,1,1-triphenyl-λ5-phosphanylidene)ethan-1-one, and different amines in the presence of CS2 in dry MeOH at reflux (Scheme 1). The alkyl carbamodithioate, which results from the addition of the amine to CS2, is added to the α,β-unsaturated ketone, resulting from the reaction between 1-phenyl-2-(1,1,1-triphenyl-λ5-phosphanylidene)ethan-1-one and isatine, to produce the 3′-alkyl-2′,3′-dihydro-4′-phenyl-2′-thioxospiro[indole-3,6′-[1,3]thiazin]-2(1H)-one derivatives in excellent yields (Scheme 2). Their structures were corroborated spectroscopically (IR, 1H- and 13C-NMR, and EI-MS) and by elemental analyses." @default.
- W2045491030 created "2016-06-24" @default.
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- W2045491030 date "2011-07-01" @default.
- W2045491030 modified "2023-09-23" @default.
- W2045491030 title "A Novel, One-Pot Four-Component Route to 2′-Thioxo-2′,3′-dihydrospiro[indole-3,6′-[1,3]thiazin]-2-one Derivatives" @default.
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- W2045491030 doi "https://doi.org/10.1002/hlca.201000419" @default.
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