72331-01-2

Basic information

• Product Name: 1,4-dimethyl-2,3,5,6,7-pentaphenyl-3,5-cycloheptadiene-1-carboxylic acid
• Synonyms: 1,4-dimethyl-2,3,5,6,7-pentaphenyl-3,5-cycloheptadiene-1-carboxylic acid
• CAS NO: 72331-01-2
• Molecular Weight: 546.709
• Mol File: 72331-01-2.mol

Chemical Properties

• CAS DataBase Reference: 1,4-dimethyl-2,3,5,6,7-pentaphenyl-3,5-cycloheptadiene-1-carboxylic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 1,4-dimethyl-2,3,5,6,7-pentaphenyl-3,5-cycloheptadiene-1-carboxylic acid(72331-01-2)
• EPA Substance Registry System: 1,4-dimethyl-2,3,5,6,7-pentaphenyl-3,5-cycloheptadiene-1-carboxylic acid(72331-01-2)

Safety Data

• Hazardous Substances Data: 72331-01-2(Hazardous Substances Data)

Upstream product

• 39934-05-9 endo-1,5-dimethyl-2,3,4,6,7-pentaphenyltricyclo<3.2.1.0^2,4>-6-octen-8-one 

Relevant articles and documents

Ring-Opening Reactions of Anionic Cyclopropyl Compounds. 3

The reaction of KO-t-Bu in Me2SO with the tricyclocyclopropyl carbonyl compounds 3a,b was shown to result in the formation of cyclopentadienes and cinnamic acid derivatives 4a,b and 5a,b which were shown to be preceded by intermediates 6a,b.It is suggested that 6a,b rearrange to 4a,b and 5a,b via an unusual electrocyclization followed by a fragmentation.An example of an apparent conrotatory ring opening of a cyclopropyl carbanion or anion radical is presented in the conversion of 8 to 9.