4- Benzoyl-2-ethenyl-5-methyl

Thus, the dianion derived from a-amino acid substitutes the /1-chloride to give the ester of 2-(phenylsulfonyl)ethenyl amino acid and subsequent desulfonylation provides N-(benzoyl)vinylalanine methyl ester (62) (equation 61). The conjugate addition of enolates to methyl styryl sulfone (63) and subsequent intramolecular addition to the carbonyl moiety provide a synthetically valuable method for the construction of bicyclic and tricyclic skeletons52. Desulfonylation of the cyclization product 64 with sodium in ethanol-THF gives the diene 65 in good yield (equation 62). 

N-Benzoyl meroquinene tert-butyl ester 4-Piperidineacetic acid, 1-benzoyl-3-ethenyl-, 1,1-dimethylethyl ester, (3R-cis)- (9) (52346-13-1) tert-Butyl alcohol (8) 2-Propanol, 2-methyl- (9) (75-65-0)... 

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