Besancon, Jack published the artcileMetallocenes. XVII. Attempts to classify the diastereogenic reactions of benchrotrenes. Study of their stereoselectivity, Recommanded Product: 2-Methyl-4-phenylbutanoic acid, the publication is Bulletin de la Societe Chimique de France (1971), 1804-14, database is CAplus.
The reduction of benchrotrenes (I) to the corresponding asym. alc. is stereoselective, and the reactions of II with Cr(CO)6 is not stereoselective. Thus, (-)-(1S)-2-hydroxy-1-propionylbenchrotrene [(-)-III] is treated with KBH4 to give (+)-(1S)-2-hydroxy-1-[(1S)-hydroxypropyl]benchrotrene (IV) (major product) and (+)-(1S)-2-hydroxy-1-[(1R)-hydroxypropyl]benchrotrene (V). A mixture of (-)-(1S)-2-methoxy-1-[(1R)-hydroxypropyl]benchrotrene (VI) (major product) and (-)-(1S)-2-methoxy-1-[(1S)-hydroxypropyl]benchrotrene (VII) is obtained from (+)-(1S)-2-methoxy-1-propionylbenchrotrene [(+)-VII]. II (R = Me, R1 = H) is treated with Cr(CO)6 to give an equimolar mixture of IX and X.
Bulletin de la Societe Chimique de France 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, Recommanded Product: 2-Methyl-4-phenylbutanoic acid.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia