10.1021/jo00359a058
The research involves the synthesis of various organic compounds. The first part focuses on the synthesis of a keto ester and a bicyclic keto lactam. The key chemicals used include ketene O,S-acetals, p-TsOH, methylamine, and silica gel for purification. The second part describes the synthesis of 10-(hydroxymethyl)-7,12-dimethylbenz[a]anthracene, involving a series of reactions starting from 1,2-naphthalic anhydride and chlorobenzene, with reagents such as AlCl?, NaBH?, Zn, KOH, and others playing crucial roles. The final part reports the synthesis of gem-dilithiofluorene by thermal rearrangement of 9-lithiofluorene, with n-butyllithium and fluorene as the starting materials. The research highlights the use of various solvents like THF, benzene, and ethyl acetate, and purification techniques such as chromatography and recrystallization.