151122-19-9

Upstream product

• 925-90-6 ethylmagnesium bromide 
• 128261-64-3 (1R,5R)-6,6-Dimethyl-3-(phenylthio)bicyclo<3.1.1>hept-3-en-2-one 

Downstream Products

• 115356-18-8 kanshone A 
• 139339-12-1 (1R,5S)-4-ethyl-6,6-dimethyl-3-(phenylsulfonyl)bicyclo<3.1.1>hept-3-en-2-one 
• 151052-96-9 (1R,5S)-3-Benzenesulfonyl-4-eth-(E)-ylidene-6,6-dimethyl-bicyclo[3.1.1]heptan-2-one 
• 139541-67-6 (1R,3RS,4R,5S)-4,6,6-Trimethyl-4-<(1R)-1-methyl-3-butenyl>-3-(phenylsulfonyl)bicyclo<3.1.1>heptan-3-one 
• 139339-17-6 (1R,3R,5S)-3-Allyl-4-<(E)-ethylidene>-6,6-dimethyl-3-(phenylsulfonyl)bicyclo<3.1.1>heptan-2-one 
• 139339-24-5 (1R,3R,5S)-4-<(E)-Ethylidene>-6,6-dimethyl-3-(3-methyl-2-butenyl)-3-(phenylsulfonyl)bicyclo<3.1.1>heptan-2-one 
• 139339-25-6 (1R,3R,5S)-4-<(E)-Ethylidene>-6,6-dimethyl-3-(phenylsulfonyl)-3-(2-propynyl)bicyclo<3.1.1>heptan-2-one 
• 139360-53-5 (1R,3R,5S)-3-Benzyl-4-<(E)-ethylidene>-6,6-dimethyl-3-(phenylsulfonyl)bicyclo<3.1.1>heptan-2-one 
• 139339-15-4 (1R,5S)-6,6-Dimethyl-4-<(1R)-1-methyl-3-butenyl>-3-(phenylsulfonyl)bicyclo<3.1.1>hept-3-en-2-one 
• 139339-16-5 (1R,5S)-6,6-Dimethyl-4-<(1S)-1-methyl-3-butenyl>-3-(phenylsulfonyl)bicyclo<3.1.1>hept-3-en-2-one 
• 139339-19-8 (1R,5S)-6,6-Dimethyl-4-<(1R)-1-methyl-3-butynyl>-3-(phenylsulfonyl)bicyclo<3.1.1>hept-3-en-2-one 
• 139339-22-3 (1R,5S)-6,6-Dimethyl-4-<(1S)-1-methyl-3-butynyl>-3-(phenylsulfonyl)bicyclo<3.1.1>hept-3-en-2-one 
• 139339-18-7 (1R,5S)-6,6-Dimethyl-4-<(1R)-1,4-dimethyl-3-pentenyl>-3-(phenylsulfonyl)bicyclo<3.1.1>hept-3-en-2-one 
• 139339-21-2 (1R,5S)-6,6-Dimethyl-4-<(1S)-1,4-dimethyl-3-pentenyl>-3-(phenylsulfonyl)bicyclo<3.1.1>hept-3-en-2-one 

Relevant academic research and scientific papers

Extracyclic Stereocontrolled Alkylation of (1R,5S)-4-Ethyl-6,6-dimethyl-3-(phenylsulfonyl)bicyclohept-3-en-2-one. A Highly Stereocontrolled Synthesis of (-)-Kanshone A

(1R,5S)-4-Ethyl-6,6-dimethyl-3-(phenylsulfonyl)bicyclohept-3-en-2-one (7) was prepared from (+)-nopinone (1) in six steps and 70percent overall yield via (1R,5R)-6,6-dimethyl-3-(phenylthio)bicyclohept-3-en-2-one (2).Alkylation reactions of 7