99881-55-7

Basic information

• Product Name: 1R,5R,9S-5-acetoxy-11,11-dimethyl-4,8-bismethylenebicyclo<7.2.0>undecane
• CAS NO: 99881-55-7
• Molecular Weight: 262.392
• Mol File: 99881-55-7.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 1R,5R,9S-5-acetoxy-11,11-dimethyl-4,8-bismethylenebicyclo<7.2.0>undecane(CAS DataBase Reference)
• NIST Chemistry Reference: 1R,5R,9S-5-acetoxy-11,11-dimethyl-4,8-bismethylenebicyclo<7.2.0>undecane(99881-55-7)
• EPA Substance Registry System: 1R,5R,9S-5-acetoxy-11,11-dimethyl-4,8-bismethylenebicyclo<7.2.0>undecane(99881-55-7)

Safety Data

• Hazardous Substances Data: 99881-55-7(Hazardous Substances Data)

Upstream product

• 13877-94-6 (-)-β-caryophyllene epoxide 
• 108-24-7 acetic anhydride 
• 19431-80-2 1R,5R,9S-11,11-dimethyl-4,8-bismethylenebicyclo<7.2.0>undecan-5-ol 

Relevant articles and documents

STEREOHCEMICALLY ABNORMAL CYCLIZATION OF CARYOPHYLLENE BY THE ACTION OF MERCURY(II) ACETATE

The products from mercuration-demercuration of the sesquiterpene hydrocarbon caryophyllene by the action of mercury(II) acetate in acetic acid were studied.The chemical structure of the main reaction product 1,4,4-trimethyltricyclo2.5>dodec-8-ene was determined by 13C NMR on the basis of an analysis of the spin-spin coupling constants 1J (13C-13C).The stereochemical structure was established by x-ray crystallographic analysis of the corresponding epoxide.A mechanism is proposed for the isomerization of caryophyllene into compounds with the tricyclo2,5>dodecane skeleton, including intramolecular attack by the mercury-containing function at the C=C bond.It was established that biomimetic cyclization of caryophyllene to β-panasinsene occurs with mercury(II) acetate in acetic acid (followed by reductive demercuration).