53178-47-5

Upstream product

• 505-23-7 1,3 dithiane 
• 96-09-3 styrene oxide 
• 19607-10-4 2-(1,3-dithian-2-ylidene)-1-phenylethanone 
• 100-42-5 styrene 
• 1603829-55-5 C₁₂H₁₅ClS₂ 

Downstream Products

• 78018-47-0 3,3-trimethylenedithio-1-phenyl-1-propanone 
• 112327-75-0 (-S-(CH₂)3-S-)CH-CH₂-CHBr-C₆H₅ 
• 95481-43-9 2-[2-(1-Hydroxy-ethyl)-[1,3]dithian-2-yl]-1-phenyl-ethanol 
• 95511-20-9 2-[2-(2-Hydroxy-2-phenyl-ethyl)-[1,3]dithian-2-yl]-propan-2-ol 
• 141523-80-0 1,3-Diphenyl-2-oxa-6,10-dithia-spiro[4.5]decan-1-ol 
• 188439-39-6 1-Methyl-3-phenyl-2-oxa-6,10-dithia-spiro[4.5]decan-1-ol 
• 95511-11-8 (2S,5R)-2-(4-Methoxy-phenyl)-5-phenyl-dihydro-furan-3-one 
• 95511-11-8 (2S,5S)-2-(4-Methoxy-phenyl)-5-phenyl-dihydro-furan-3-one 
• 95511-02-7 1-(4-Methoxy-phenyl)-3-phenyl-2-oxa-6,10-dithia-spiro[4.5]decane 
• 95511-06-1 1,1-Dimethyl-3-phenyl-2-oxa-6,10-dithia-spiro[4.5]decane 
• 95511-04-9 1-Methyl-3-phenyl-2-oxa-6,10-dithia-spiro[4.5]decane 
• 95481-44-0 (2R,5S)-2-Methyl-5-phenyl-dihydro-furan-3-one 
• 95481-44-0 (2S,5S)-2-Methyl-5-phenyl-dihydro-furan-3-one 
• 493-71-0 bullatenone 

Relevant academic research and scientific papers

Platinum complex resistant to sulfur poisoning and applications thereof

The invention discloses a platinum complex resistant to sulfur poisoning and applications thereof. The platinum complex has a complexing symmetric structure, which comprises a 1,3-dithiane benzene containing derivative group and symmetric unsaturated epithio-silane; wherein the 1,3-dithiane benzene containing derivative group comprises a benzene ring and a symmetric epithio- six-membered ring. ThePt catalyst has a highly symmetrical complexing structure and a very good effect on resisting sulfur poisoning. The catalytic activity is 92% or more. The catalytic effect in a sulfur system is basically the same as that in a non-sulfur system. The Pt catalyst has a good performing on resisting sulfur poisoning, is very stable at a room temperature, and can be stored for a long term. Solved are the problems that in the prior art, the storage time of a conventional Pt catalyst is short, the conventional Pt catalyst should be strictly sealed, and the catalytic activity of the Pt catalyst is lost after the Pt catalyst is poisoned by sulfur containing compounds. The Pt catalyst can be widely used in silicon-hydrogen addition reactions.

Preparation method of anti-sulfur poisoning platinum complex

The invention provides a preparation method of an anti-sulfur poisoning platinum complex. The preparation method comprises the following steps: preparing a 1,3-dithiane benzene containing derivative intermediate A, preparing an unsaturated symmetrical epithio-silane intermediate B, connecting the 1,3-dithiane benzene containing derivative intermediate A to Pt through a phase transfer substitutionbond, then firstly substituting and then chelating the unsaturated symmetrical epithio-silane intermediate B to Pt, and obtaining the anti-sulfur poisoning platinum complex. The preparation method issimple and convenient, the reaction condition is mild, the production efficiency is high, the cost is low, and the industrial production is realized. A prepared catalyst has a highly symmetric complexstructure, the anti-sulfur poisoning platinum complex is stable at the room temperature, can be stored for long and has an excellent anti-sulfur poisoning catalytic effect, the catalytic activity ismore than 92%, the curing degrees of a sulfur-containing system and a non-sulfur system are basically the same and both reach more than 90%, and the anti-sulfur poisoning platinum complex has an excellent anti-sulfur poisoning capability, and is widely applied to the hydrosilylation.

Aggregative activation and carbanion chemistry: Complex base deprotonation and directed functionalisation of dithioacetals

Bis(phenylthio)methane and [1,3]-dithiane were efficiently deprotonated by the NaNH2-Et(OCH2CH2)2-ONa complex base. A marked behaviour difference was observed between the sodium carbanion of [1,3]-dithiane and the corresponding lithio-derivative. A 'radicaloid' mechanism is proposed to explain the results observed.

A Novel 1,3-Dithiane-based Cyclopenta-annellation Procedure: Synthesis of the Rocaglamide Skeleton

A novel three carbon cyclopentanone annellation procedure, based on direct 1,3-dithiane lithiation followed by intramolecular carbonyl addition, has been employed in a synthetic approach to the anti-cancer compound, rocaglamide.

A CONDENSED SYNTHESIS OF DIHYDRO-3(2H)-FURANONE

A straight forward synthesis of dihydro-3(2H)-furanone is described.An attempted preparation of the oxetan-3-one precursor 10 by this method gave, instead, the ring enlargement product 11.