107344-38-7

Upstream product

• 107344-26-3 4,4-dimethyl-1-(2-propenyl)-2-cyclopentenol 
• 107344-28-5 5,5-dimethyl-3-(2-propenyl)-2-cyclopentenol 
• 107344-30-9 4,4-dimethyl-1-(2-propenyl)cyclopent-2-ene-1-acetic acid 
• 116672-52-7 (1-Allyl-4,4-dimethyl-cyclopent-2-enyl)-acetyl chloride 
• 107344-31-0 1-(1-Allyl-4,4-dimethyl-cyclopent-2-enyl)-3-diazo-propan-2-one 
• 107344-29-6 4,4-dimethyl-1-(2-propenyl)cyclopent-2-ene-1-acetic acid ethyl ester 
• 107344-27-4 5,5-dimethyl-3-(2-propenyl)-2-cyclopentenone 
• 104-15-4 toluene-4-sulfonic acid 
• 107344-32-1 7,7-dimethyl-5-(2-propenyl)tricyclo<3.3.0.0^2,8>octan-3-one 
• 107344-32-1 tricyclo(3.3.0.0^2,8)octan-3-one 
• 116672-50-5 (1-Allyl-4,4-dimethyl-cyclopent-2-enyl)-acetaldehyde 
• 116672-49-2 1-Allyl-4,4-dimethyl-3-vinyloxy-cyclopentene 

Relevant academic research and scientific papers

7,7-Dimethyltricyclo2,8>octan-3-ones as Synthetic Intermediates. I. Preparation and Cyclopropane Ring Opening of 7,7-Dimethyl-5-(2-propenyl)tricyclo2,8>octan-3-one

7,7-Dimethyl-5-(2-propenyl)tricyclo2,8>octan-3-one (4) was prepared from 4,4-dimethyl-2-cyclopentenone in several steps.The Birch reduction of 4 resulted in exclusive formation of a bicyclooctanone (14) through C2-C8 bond cleavage, while its substitutional reactions yielded bicyclooctanones (15) through C1-C2 bond cleavage as major products.Keywords- cyclopropane ring opening; tricyclo2,8>octane; bicyclooctane; bicyclooctane; Birch reduction; SN2 reaction

A NOVEL CONSTRUCTION OF OCTAHYDRO-3a,7-ETHANO-3aH-INDENE SKELETON FROM A TRICYCLO2,8>OCTANE: A TOTAL SYNTHESIS OF (+/-)-DESCARBOXYQUADRONE

Total synthesis of (+/-)-descarboxyquadrone was achieved via a regioselective C1-C2 bond cleavage of 7,7-dimethyl-5-(2-propenyl)-tricyclo(3.3.0.02,8)octan-3-one as a crucial step.