137145-21-2

Basic information

• Product Name: 5-Thiaspiro[3.4]octane-8-carboxylic acid, 8-cyano-1,1,3,3-tetramethyl-7-(4-nitrophenyl)-2-oxo-, methyl ester, trans-
• CAS NO: 137145-21-2
• Molecular Formula: C20H22N2O5S
• Molecular Weight: 402.471
• Mol File: 137145-21-2.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 5-Thiaspiro[3.4]octane-8-carboxylic acid, 8-cyano-1,1,3,3-tetramethyl-7-(4-nitrophenyl)-2-oxo-, methyl ester, trans-(CAS DataBase Reference)
• NIST Chemistry Reference: 5-Thiaspiro[3.4]octane-8-carboxylic acid, 8-cyano-1,1,3,3-tetramethyl-7-(4-nitrophenyl)-2-oxo-, methyl ester, trans-(137145-21-2)
• EPA Substance Registry System: 5-Thiaspiro[3.4]octane-8-carboxylic acid, 8-cyano-1,1,3,3-tetramethyl-7-(4-nitrophenyl)-2-oxo-, methyl ester, trans-(137145-21-2)

Safety Data

• Hazardous Substances Data: 137145-21-2(Hazardous Substances Data)

Upstream product

• 10181-59-6 2,2,4,4-tetramethyl-3-thioxocyclobutanone 
• 42348-04-9 methyl (E)-2-cyano-3-(4-nitrophenyl)-2-propenoate 
• 23604-61-7 1,1,3,3-tetramethyl-8-thia-5,6-diazaspiro[3.4]oct-5-en-2-one 

Relevant articles and documents

Can polymerization trap intermediates in 1,3-dipolar cycloadditions?

2,2,4,4-Tetramethyl-3-thioxocyclobutanone 5-methylide (TTCM) is a nucleophilic 1,3-dipole which is known to undergo two-step cycloadditions to very electron poor olefins. When this 1,3-dipole is generated from its precursor, the 1,3,4-thiadiazoline 7, in