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Relevant academic research and scientific papers

A green protocol for the easy synthesis of thiiranes from epoxides using thiourea/silica gel in the absence of solvent

The use of thiourea/silica gel provides a green protocol for the easy and high-yielding preparation of thiiranes from different classes of epoxides in the absence of solvent at room temperature. The high stereospecific conversion of (R)(+)-styrene oxide to (S)(+)-styrene sulfide is also reported using this reagent system. Copyright Taylor & Francis Inc.

Conversion of oxiranes to thiiranes catalyzed with silica gel-supported aluminium chloride

Silica gel-supported aluminium chloride, SiO2-AlCl3, catalysizes the efficient conversion of different oxiranes to their corresponding thiiranes in the presence of thiourea under nonaqueous conditions. Copyright Taylor & Francis, Inc.

Bi(TFA)3 and Bi(OTf)3 catalyzed conversions of epoxides to thiiranes with ammonium thiocyanate and thiourea under non-aqueous conditions

Various epoxides are converted to their corresponding thiiranes in excellent yields with ammonium thiocyanate and thiourea under non-aqueous conditions in the presence of catalytic amounts of Bi(TFA)3 and Bi(OTf)3.

Solvent-free conversion of oxiranes to thiiranes with thiourea

A simple and efficient method for the conversion of various oxiranes to the corresponding thiiranes using thiourea under solvent free conditions is described.

Mild, efficient, and convenient conversion of oxiranes to thiiranes with ammonium thiocyanate and thiourea in the presence of cerium(IV) polyoxometallate

Selective conversion of various oxiranes to the corresponding thiiranes in the presence of ammonium thiocyanate and thiourea can be effectively carried out by ammonium decatungestocerate(IV) icosahydrate, (NH4)8 [CeW10O36]·20H2O.

Conversion of epoxides to thiiranes catalyzed with TiO(TFA)2 and TiCl3(OTf) in the presence of ammonium thiocyanate or thiourea

TiO(CF3CO2)2 and TiCl3(CF3SO3) are efficient catalysts for the conversion of epoxides to thiiranes in the presence of ammonium thiocyanate or thiourea under non-aqueous conditions.

Bismuth(III) chloride; A mild and efficient catalyst for synthesis of thiiranes from oxiranes

A simple and efficient method for the conversion of oxiranes to the corresponding thiiranes using ammonium thiocyanate (NH4SCN) and catalytic amounts of bismuth(III) chloride (BiCl3) is described. The yields obtained are excellent.

Synthesis of thiiranes from oxiranes under mild and nonaqueous conditions using polymer supported thiocyanate

Oxiranes are efficiently converted to their corresponding thiiranes under mild and nonaqueous condition using polymer supported thiocyanate. The polymeric reagent is regenerable.

Conversion of epoxides to thiiranes with thiourea or ammonium thiocyanate catalyzed with poly(4-vinyl pyridine)-Ce(OTf)4

Conversion of epoxides to thiiranes with ammonium thiocyanate or thiourea in the presence of poly(4-vinyl pyridine)-Ce(OTf)4 as catalyst and under non-aqueous condition is reported. Stereospecific conversion of R-(+)- styrene oxide to S-(-)-styrene sulfide was achieved in high optical purity. The polymer can be easily reloaded.

Synthesis of Thiiranes from Oxiranes Using Cross-Linked Polystyrene Supported Aluminium Chloride as a Catalyst

A simple and efficient method for conversion of oxiranes to their corresponding thiiranes using thiourea catalyzed with cross-linked polystyrene supported aluminium chloride, (Ps-AlCl3), under non-aqueous condition is described.