128947-73-9

Upstream product

• 352564-79-5 C₂₁H₁₅NO₂S 
• 140-89-6 potassium ethyl xanthogenate 
• 1439-07-2 (S,S)-trans-stilbene oxide 
• 588-59-0 stilbene 
• 343597-58-0 2,4-diphenyl-1,3-oxathiolan-5-one 
• 63578-71-2 Thiophosphoric acid O,O'-diethyl ester S-(2-oxo-1,2-diphenyl-ethyl) ester 
• 31247-20-8 α,α'-dibromodibenzyl sulfide 
• 1439-07-2 trans-Stilbene oxide 
• 62533-71-5 trans-2-Methylimino-4,5-diphenyl-1,3-oxathiolan 
• 1689-71-0 2,3-diphenyloxirane 

Downstream Products

• 645-49-8 cis-stilben 
• 103-30-0 (E)-1,2-diphenyl-ethene 
• 22020-90-2 1,2-diphenylthiirane-S,S-dioxide 
• 34013-59-7 trans-stilbene episulphoxide 
• 128881-53-8 cis-5,6-diphenyl-1,2,3,4-tetrathiane 
• 128881-53-8 trans-5,6-diphenyl-1,2,3,4-tetrathiane 
• 6052-46-6 (Z)-(1,2-diphenylvinyl)(phenyl)sulfane 

Relevant academic research and scientific papers

2,4,6-Trichloro-1,3,5-triazine catalyzed synthesis of thiiranes from oxiranes under solvent-free and mild conditions

A simple, mild and efficient method has been developed for the synthesis of thiiranes from epoxides using a catalytic amount of 2,4,6-trichloro-1,3,5-triazine under solvent-free conditions.

A green protocol for solvent-free conversion of epoxides to thiiranes with Dowex-50WX8-supported thiourea

Structurally different epoxides were efficiently converted to the corresponding thiiranes by Dowex-50WX8-supported thiourea under solvent-free conditions. The reactions were carried out either in an oil bath or under microwave irradiation to give the thiiranes in 75-98% yields within 30 sec-120 min.

A facile and efficient one-pot synthesis of thiirans by the reaction of benzoxazolyl β-ketosulfides with NaBH4/NaOH

Convenient and efficient procedures for thiirans have been developed via a one-pot reaction of benzoxazolyl β-ketosulfides with NaBH4 and NaOH in MeOH and THF. The reaction is considered to proceed via the spiro intermediate by the ipso-additio

LiClO4 catalyzed mild and efficient method for the synthesis of thiiranes from oxiranes

Oxiranes are efficiently converted to the corresponding thiiranes by potassium thiocyanate in the presence of catalytic amounts of LiClO4 with excellent yields under mild and nonaqueous conditions.

Synthesis of Deuterated (E)-Alkene through Xanthate-Mediated Hydrogen-Deuterium Exchange Reactions

Herein we have developed a reversible hydrogen-deuterium exchange reaction of nonactivated olefins. By using EtOCS2K as a mediator, the H/D exchange reaction was realized through repeated addition and elimination reactions, demonstrating reversible H/D exchange between ordinary olefins and deuterated olefins. Using the lowest cost D2O without precious metal catalysts and ligands, a broad spectrum of compatibility of functional groups was achieved.

Mild and efficient desulfurization of thiiranes with MoCl5/Zn system

Desulfurization of a variety of thiiranes to alkenes occurs chemoselectively in high yields upon treatment with MoCl5/Zn system under mild conditions. The new methodology demonstrates high functional group tolerance toward chloro, bromo, fluoro, methoxy, ester, ether and keto groups.

Convenient synthesis of 1,3-dithiolane-2-thiones: Cyclic trithiocarbonates as conformational locks

A series of novel 1,3-dithiolane-2-thiones, or cyclic trithiocarbonates, has been prepared by a new simple procedure: a treatment of the corresponding epoxides with the commercially available potassium ethyl xanthogenate, KSC(S)OEt. The stereochemistry of the products was determined by 1H NMR and in some cases by single-crystal X-ray data. Cyclohexane-based 1,3- dithiolane-2-thiones revealed a trans-fusion of the carbo- and hetero-cycles. The products obtained from the mono-substituted cyclohexene oxides demonstrated an axial position of the substituents. Thus the epoxide transformation into trithiocarbonate can be used as a method for locking cyclic compounds in unstable conformations.ARKAT-USA, Inc.

Green synthesis of thiiranes from oxiranes under solvent- and catalyst-free conditions

A simple and efficient method for the conversion of oxiranes to thiiranes using ammonium thiocyanate (NH4SCN) under solvent- and catalyst-free conditions is described. These conditions enable clean and fast conversion of oxiranes to the corresponding thiirane.

A practical and eco-friendly method for conversion of epoxides to thiiranes with immobilized thiourea on CaCO3

Solvent-free conversion of various epoxides to the corresponding thiiranes was carried out efficiently with immobilized thiourea on CaCO3. The reactions were completed within 1-12 min under oil bath (60 °C-70 °C) conditions to afford thiiranes in 88%-98% yields. Copyright Taylor & Francis Group, LLC.

Zeolite molecular sieve 4: A reusable catalyst for fast and efficient conversion of epoxides to thiiranes with thiourea

Various epoxides are readily converted to their corresponding thiiranes by thiourea/zeolite molecular sieve 4 system in refluxing MeOH. All reactions were carried out within 12-25 min to give thiiranes in 80%-99% yields. The catalyst saves its catalytic activity for several times at this transformation. Stereospecific conversion of (R)-(+)-styrene oxide to (S)-(+)-styrene episulfide was achieved by this combination system. Taylor & Francis Group, LLC.