77128-48-4

Basic information

• Product Name: C₂₀H₁₅⁽²⁾HOS₂
• Synonyms: C₂₀H₁₅⁽²⁾HOS₂
• CAS NO: 77128-48-4
• Molecular Weight: 337.47
• Mol File: 77128-48-4.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: C₂₀H₁₅⁽²⁾HOS₂(CAS DataBase Reference)
• NIST Chemistry Reference: C₂₀H₁₅⁽²⁾HOS₂(77128-48-4)
• EPA Substance Registry System: C₂₀H₁₅⁽²⁾HOS₂(77128-48-4)

Safety Data

• Hazardous Substances Data: 77128-48-4(Hazardous Substances Data)

Upstream product

• 22805-27-2 ω,ω-bis(phenylthio)acetophenone 
• 108-98-5 thiophenol 
• 16222-10-9 1-phenyl-2-(phenylthio)ethanone 

Downstream Products

• 77128-49-5 C₂₀H₁₅⁽²⁾HOS₂ 
• 882-33-7 diphenyldisulfane 
• 77128-61-1 3-phenyl-2-(phenylsufanyl)benzo[b]thiophene 

Relevant articles and documents

PHOTOCHEMICAL RING CLOSURE OF α,α-BISULFENYLATED CARBONYL COMPOUNDS STEREOSELECTIVE FORMATION OF CIS-DIHYDROBENZOTHIOPHENES

Photochemistry of α,α-bisulfenylated ketone has been investigated.Irradiation of 2-phenylthiodihydrothiophen-3-one (1) in benzene gave the radical recombination products 9 (63percent) and 10 (49percent).In a polar solvent, the ionic chemistry became predominant.Brief irradiation of 1 in acetonitrile and methanol gave the cis-fused dihydrothiophene 11 as the major product in 43percent and 20percent yields, respectively.The stereoselective photocyclization was generally observed for other ketones (2-8) in acetonitrile solution (Table 1).The photoproducts were easily dehydrated by treating with boron trifluoride etherate to give the corresponding benzothiophenes in high yields.Simple α-phenylthioketones are photoinert under the same conditions.The mechanism of this novel photocyclization of bisulfenylated ketones is also discussed.