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

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

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

Direct preparation of anhydrous sodium oligosulfides from metal sodium and elemental sulfur in aprotic organic media directed toward synthesis of silane coupling agent

Anhydrous sodium oligosulfide was prepared by the heterogeneous reaction of metal sodium and elemental sulfur in aprotic solvents. The oligosulfide consisted of a mixture of several Na2Sn (n = 2 - 8). Organic oligosulfides (R2Sn, n ≥ 2) including moisture-sensitive one were synthesized by the reaction with organic halides in high yeilds under mild conditions.

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.