Sah, Peter P. T. published the artcileNote on the synthesis of 2-methyl-1,4-naphthoquinone (synthetic vitamin K) from benzene and citric or d-tartaric acid, Application of 2-Methyl-4-phenylbutanoic acid, the publication is Berichte der Deutschen Chemischen Gesellschaft [Abteilung] B: Abhandlungen (1940), 1430-2, database is CAplus.
cf. C. A. 35,447.5. The stages of the synthesis are: citric acid or d-tartaric acid ¡ú itaconic + citraconic acids ¡ú methylsuccinic acid ¡ú methylsuccinic anhydride, m. 36¡ã, b20 155-60¡ã ¡ú ¦Á-methyl-¦Â-benzoylpropionic acid, needles from alc., m. 136¡ã ¡ú ¦Á-methyl-¦Ã-phenylbutyric acid, colorless oil, b20 178-82¡ã ¡ú ¦Á-methyl-¦Ã-phenylbutyryl chloride, oil, b20 132-5¡ã ¡ú 2-methyl-¦Á-tetralone, oil, b20 135-40¡ã ¡ú 2-methyl-1,2,3,4-tetrahydronaphthalene, oil, b60 228-30¡ã ¡ú 2-methylnaphthalene ¡ú 2-methyl-1,4-naphthoquinone ¡ú 2-methyl-1,4-dibenzoylnaphthohydroquinone, m. 179-80¡ã.
Berichte der Deutschen Chemischen Gesellschaft [Abteilung] B: Abhandlungen 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 C11H14O2, Application of 2-Methyl-4-phenylbutanoic acid.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia