204649-38-7

Basic information

• Product Name: Phenol, 2-[(3,3,4,4-tetramethyl-2-thietanylidene)amino]-, acetate (ester)
• CAS NO: 204649-38-7
• Molecular Formula: C15H19NO2S
• Molecular Weight: 277.387
• Mol File: 204649-38-7.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: Phenol, 2-[(3,3,4,4-tetramethyl-2-thietanylidene)amino]-, acetate (ester)(CAS DataBase Reference)
• NIST Chemistry Reference: Phenol, 2-[(3,3,4,4-tetramethyl-2-thietanylidene)amino]-, acetate (ester)(204649-38-7)
• EPA Substance Registry System: Phenol, 2-[(3,3,4,4-tetramethyl-2-thietanylidene)amino]-, acetate (ester)(204649-38-7)

Safety Data

• Hazardous Substances Data: 204649-38-7(Hazardous Substances Data)

Upstream product

• 563-79-1 2,3-Dimethyl-2-butene 
• 37441-95-5 1-(2-thioxobenzo[d]oxazol-3(2H)-yl)ethanone 
• 230958-81-3 methyl 3',3',4',4'-tetramethylspiro[3H-benzoxazole-2,2'-thiethane]-3-carboxylate 
• 19650-83-0 N-(iso-butyryl)benzoxazoline-2-thione 
• 312313-49-8 o-(2-Phenylpropanoyl)-N-(3,3,4,4-tetramethylthietan-2-ylidene)aniline 
• 312313-34-1 3-phenyl-1-(2-thioxobenzo[d]oxazol-3(2H)-yl)propan-1-one 
• 204649-41-2 o-(2-Methylpropanoyl)-N-(3,3,4,4-tetramethylthietan-2-ylidene)aniline 
• 49740-24-1 methyl 2-thioxo-3H-benzoxazole-3-carboxylate 
• 108-24-7 acetic anhydride 
• 312313-52-3 o-Hydroxy-N-(3,3,4,4-tetramethylthietan-2-ylidene)aniline 

Downstream Products

• 312313-52-3 o-Hydroxy-N-(3,3,4,4-tetramethylthietan-2-ylidene)aniline 

Relevant articles and documents

Photoaddition of N-acylbenzoxazole-2-thiones to alkenes

N-Acylbenzoxazole-2-thiones 1 undergo photoaddition with alkenes 2 in a regiospecific manner to yield benzoxazole derivatives 3-9 and/or the unexpected, iminothietanes 10-14 via spirocyclic aminothietane intermediates, depending on the nature of the substituents both on the N-atom of 1 and those present in the alkenes 2.

Photochemical reactions of N-acylbenzoxazole-2-thiones

The photochemical reactions of N-acylbenzoxazole-Z-thiones 1 are examined. Irradiation of N-acylbenzoxazole-2-thiones 1 in the presence of a variety of alkenes 2 yields 2-substituted benzoxazoles 3-20 and/or the unexpected products, iminothietanes 21-29 by intramolecular trapping of the acyl group by thiolate anion of the zwitterionic intermediate I and by the phenolate anion of the zwitterionic intermediate II, respectively, derived from the spirocyclic aminothietanes AT which are formed by regioselective [2+2] cycloaddition of the carbon-sulfur double bond of 1 to the alkene double bond. The Royal Society of Chemistry 2000.