17246-63-8

Basic information

• Product Name: dibenzyl pentasulfide
• Synonyms: dibenzyl pentasulfide
• CAS NO: 17246-63-8
• Molecular Weight: 342.595
• Mol File: 17246-63-8.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: dibenzyl pentasulfide(CAS DataBase Reference)
• NIST Chemistry Reference: dibenzyl pentasulfide(17246-63-8)
• EPA Substance Registry System: dibenzyl pentasulfide(17246-63-8)

Safety Data

• Hazardous Substances Data: 17246-63-8(Hazardous Substances Data)

Upstream product

• 100-44-7 benzyl chloride 
• 150-60-7 dibenzyl disulphide 
• 12136-50-4 potassium pentasulfide 
• 106-94-5 propyl bromide 
• 100-53-8 phenylmethanethiol 
• 859323-48-1 acetyl-benzyl-trisulfane 
• 100-39-0 benzyl bromide 
• 34813-71-3 benzyl-trisulfane 
• 3492-66-8 benzyl-disulfane 

Downstream Products

• 6493-73-8 dibenzyltrisulfide 

Relevant articles and documents

Three sulfur atom insertion into the S-S bond - Pentasulfide preparation

Chloro(triphenylmethyl)trisulfide (1) reacts under mild conditions with symmetric primary dialkyl disulfides and aromatic disulfides giving pentasulfides as the main products in good yield and selectivity. A mechanism involving a triphenylmethyl alkyl/phenyl tetrasulfide intermediate is discussed. (C) 2000 Elsevier Science Ltd.

Nucleophilic substitution of alkyl halides by electrogenerated polysulfide ions in N,N-dimethylacetamide

The reactions between a series of alkyl halides RX: X = I, R = CH3 (1), C3H7 (2); X = Br, R = C4H9 (3), 2-C4H9 (4), 3-C5H11 (5), PhCH2 (6); X = Cl, R = PhCH2 (7), C6H13 (8), and electrogenerated S1/3- ions (S62- ?S3.-) have been investigated by spectroelectrochemistry in N,N-dimethylacetamide at 20°C. RX substrates react in two steps: (i) nucleophilic substitution of S1/3- ions (SN2 process) yielding RSx- ions (x = 5.2, R = alkyl; x = 4.8, R = PhCH2); (ii) subsequent substitutions of RSx- ions lead to RSzR polysulfanes (z ≈ 3.5), probably through partial disproportionation of the anionic species. On a preparative scale, mixtures of CH3SzCH3 (z = 2-6, z = 3.9) or PhCH2Sz CH2Ph (z = 2-5, z = 3.7) were obtained from chemical reactions between 1, 6 and S62- ions, or electrochemical syntheses. Kinetic studies at 20°C of the reactions between S3.- ions and substrates 4, 5, 7 and 8 imply that the dianions S62- are the nucleophilic agents in the first step rather than S3.- radical anions.