Gauchet, F. published the artcileRegiochemistry of alkylation of benzoate and hydrogen dibenzoate anions with 1,1-dimethylallyl and 3,3-dimethylallyldimethylsulfonium salts. Influence of copper(I), Recommanded Product: 3-Methylbut-2-en-1-yl benzoate, the publication is Bulletin de la Societe Chimique de France (1990), 268-74, database is CAplus.
CH2:CHCMe2S+Me2 BF4– (I) was prepared by methylation of CH2:CHCMe2SMe, to compare its reactivity towards substitution to that of Me2C:CHCH2S+Me2 BF4– (II). Substitution by benzoate is remarkably sensitive to the nature of the nucleophile: whereas, the reaction of PhCO2K with I gives a 50:50 mixture of primary and tertiary esters, potassium hydrogen dibenzoate leads exclusively to the tertiary ester. In the presence of copper(I) the tertiary benzoate is the only product obtained with both nucleophiles, as in the case of II; this result is consistent with the involvement of a π-allyl copper intermediate common to both isomers.
Bulletin de la Societe Chimique de France published new progress about 5205-11-8. 5205-11-8 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Benzene,Ester, name is 3-Methylbut-2-en-1-yl benzoate, and the molecular formula is C12H14O2, Recommanded Product: 3-Methylbut-2-en-1-yl benzoate.
Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics