by nitration of II [Y = halogen, B = protected gp. of CR4-NR5R6(R4 = R5 = R6 or other alkyl gp., R4, R5, R6 is joined to each other) , reducting, followed by redn. with NaBH4 to give III. Hydrolysis of III with acid or alkali give I.BORMANN DMERKEL WMANIA D...
NaBH4 favored the creation of diol 213 with hydride (H−) transfer to the Si face of the ketone. Deprotection via cleavage of the benzyl-ester of 213 was achieved by a hydrogen gas atmosphere and Pd/C, producing maslinic acid 214 (Scheme 5.25) (Nelson et al., 2015). Sign in...
Benzoic acidChemoselective hydrogenationHeterogeneous catalystN-Doped carbonOne-pot pyrolysisA novel N-doped carbon supported Rh catalyst was developed via one-pot pyrolysis of chitin and (NH4)3RhCl6. The catalyst exhibited excellent catalytic activity and recyclability for the hydrogenation of benzoic ...