448960-45-0

Upstream product

• 113327-82-5 1-methyl-3-phenylpropylidenecyclopropane 
• 2550-26-7 4-Phenyl-2-butanone 
• 448960-40-5 4-phenyl-2-[1-(phenylsulfanyl)cyclopropyl]-2-butanol 

Downstream Products

• 69849-59-8 3-Methyl-3-(2-phenyl)aethylcyclopentanon 

Relevant academic research and scientific papers

2,2-Dimethyl cyclopentanones by acid catalyzed ring expansion of isopropenylcyclobutanols. A short synthesis of (±)-α-cuparenone and (±)-herbertene

2,2-Dimethyl cyclopentanones are readily prepared by acid catalyzed ring expansion of isopropenylcyclobutanols; the method allows ready access to the family of sesquiterpenes cuparanes and herbertanes, as demonstrated by the synthesis of (±)-α-cuparenone

Use of cyclobutyl derivatives as intermediates in the synthesis of 1,2a,3,8b-tetrahydro-2H-cyclobuta[c]chromenes

Starting from cyclobutanones and tertiary cyclobutanols several new chromenes containing a cyclobutane ring have been prepared by acid catalyzed intramolecular alkylation of an oxygen-carrying aromatic ring. Interestingly one of the cyclobutanols leads to 3-[(4-methoxyphenoxy)methyl]-2,2,3- trimethylcyclopentanone that is a precursor in the synthesis of the carotenoid pigment capsorubin.

Synthesis of new heterocycles through a cation-driven tandem ring-enlargement - Annulation reaction

(Matrix presented) The thionium ion, generated through a cyclopropylcarbinyl-cyclobutyl ring expansion, is, for the first time, intramolecularly intercepted by activated aromatic rings to generate new versatile 2a-methyl-8b-(phenylsulfanyl-1,2a,3,8b-tetra

The first facile synthesis of some 1,2a,3,8b-tetrahydro-2H- cyclobuta[c] chromenes through intramolecular alkylation of an aromatic ring by a cyclobutanone

Starting from cyclobutanones several new chromenes containing a cyclobutane ring are prepared. Ring fission of these derivatives gives easy access to functionalized 3-isoflavenes.