Watanabe, Shoji published the artcileReaction of carboxylic acids with conjugated olefins, using sodium naphthalenide in the presence of N,N,N’,N’-tetramethylethylenediamine, Formula: C11H14O2, the publication is Yukagaku (1982), 31(5), 295-9, database is CAplus.
Alkylation of carboxylic acids at the 2-position with conjugated dienes such as isoprene, butadiene, myrcene, and styrene were carried out. For example, 2,2,5-trimethyl-4-hexenoic acid was obtained in 66% yield from the reaction of isobutyric acid (I) and isoprene using Na naphthalenide in the presence of Me2NCH2CH2NMe2. Similarly, from I and styrene, 2,2-dimethyl-4-phenylbutyric acid was obtained in 57% yield. Furthermore, conversion of these carboxylic acids to alcs., aldehydes, and lactones were examined
Yukagaku published new progress about 1949-41-3. 1949-41-3 belongs to catalysis-chemistry, auxiliary class Carboxylic acid,Benzene, name is 2-Methyl-4-phenylbutanoic acid, and the molecular formula is C3H5BN2O2, Formula: C11H14O2.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia