Sulfur and selenium derivatives of 2-pho
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Raj K. Bansal; Neelima Gupta; Neela Bharatiya; Geetika Gupta; Anushka Surana; Ga
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Article
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1998
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John Wiley and Sons
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English
โ 195 KB
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The 2-phosphaindolizines 1 react with hydrogen sulfide and elemental sulfur to give the new zwitterionic heterocyclic systems 2 of the N-pyridiniomethyl dithiophosphinate type. In contrast, no reaction is observed with sulfur alone. MeI methylates 2e,f at sulfur. The analogous pyridiniodiselenophosp