35756-13-9

Upstream product

• 35756-26-4 2,3-dihydro-5-phenyl-1,4-dithiin 
• 74-88-4 methyl iodide 
• 136062-36-7 (2-Methyl-[1,3]dithiolan-2-yl)-phenyl-methanol 
• 136062-35-6 1-(2-Phenyl-[1,3]dithiolan-2-yl)-ethanol 
• 579-07-7 1-Phenylpropane-1,2-dione 
• 61571-95-7 1-(2-Phenyl-[1,3]dithiolan-2-yl)-ethanone 
• 136062-33-4 (2-Methyl-[1,3]dithiolan-2-yl)-phenyl-methanone 
• 540-63-6 ethane-1,2-dithiol 
• 103-79-7 1-phenyl-acetone 
• 93-55-0 1-phenyl-propan-1-one 

Downstream Products

• 579-07-7 1-Phenylpropane-1,2-dione 

Relevant academic research and scientific papers

A one-pot synthesis of 1,4-dithiins and 1,4-benzodithiins from ketones using the recyclable reagent 1,1′-(ethane-1,2-diyl)dipyridinium bistribromide (EDPBT)

A novel access to 1,4-dithiins and 1,4-benzodithiins from the corresponding ketones in one-pot using the recyclable reagent, 1,1′-(ethane-1,2-diyl)dipyridinium bistribromide (EDPBT) is described. This method is mild, simple, environmentally benign and is

Stereoselective azide introduction during 1,2-sulfur migration in α-hydroxyalkyldithioacetals

A series α-hydroxyalkyldithiolanes were reacted with a mixture of triphenylphosphine, diethyl azodicarboxylate and hydrazoic acid to give 2-azido-l,4-dithianes stereoselectively. Reduction of the azido group to an amine resulted in racemisation.

Chemistry of ethanediyl S,S-acetals - 4. A promising way to cis-substituted olefins, stereoselectively from carbonyl compounds

Aldehydes and methyl ketones readily afford 5,6-dihydro-1,4-dithiins that can be converted by n-butyllithium into their corresponding sulfur stabilized carbanions. Coupling of the latter with alkyl halides leads to species having a cis-configurated, disubstituted double bond tied up by the sulfur-containing ring which is known to be susceptible of selective removal.

Synthesis of 2,3-dihydro-1,4-dithiins and 2-alkylidene-1,4-dithianes by 1,2-sulfur migration in 2-(1-hydroxyalkyl)-1,3-dithiolanes

2,3-Dihydro-1,4-dithiins and the isomeric 2-alkylidene-1,4-dithianes were synthesized from 1,2-diketones and alkyl pyruvates by kinetically controlled ring expansion of 2-(1-hydroxyalkyl)-1,3-dithiolanes with p-toluenesulfonyl chloride in pyridine. In addition, 2,3-dihydro-1,4-dithiins, the thermodynamic products, were formed exclusively by using p-toluenesulfonic acid in refluxing benzene. The 2-alkylidene-1,4-dithianes were readily isomerised to the corresponding 2,3-dihydro-1,4-dithiins. Similarly, 2,3-dimethyl-6,7-dihydro-5H-1,4-dithiepine and (+)-2-methylene-3-methyl-1,4-diethiepane were obtained from 2-[(S)-1-hydroxyethyl]-2-methyl-1,3-dithiane.