444577-89-3

Upstream product

• 15174-47-7 α-methyl-trans-cinnamaldehyde 
• 148601-11-0 (2E,4E)-4-methyl-5-phenyl-penta-2,4-dien-1-ol 
• 58550-28-0 (2E,4E)-ethyl 4-methyl-5-phenylpenta-2,4-dienoate 
• 503-60-6 3,3-dimethyl-allyl chloride 
• 444578-05-6 4-methyl-5-phenyl-(2E,4E)-pentadienyl thioacetate 

Downstream Products

• 444577-96-2 3-methyl-2-butenyl 4'-methyl-5'-phenyl-(2'E,4'E)-pentadienyl sulfone 

Relevant academic research and scientific papers

Stereoselective synthesis of substituted all-trans 1,3,5,7-octatetraenes by a modified Ramberg-B?cklund reaction

The reaction of allylic dienylic sulfone with dibromodifiuoromethane in the presence of alumina-supported KOH in dichloromethane solution results in facile rearrangement affording the corresponding all-trans 1,3,5,7-octatetraenes in excellent yields. This result shows that the double bonds of stereochemically defined allylic dienylic sulfone retain their stereochemistry and the newly formed double bond has an (E)-configurafion in the modified Rambeig-B?cklund procedure.