パラジウム-フィブロイン触媒の創製と新規官能基選択的接触還元法の開発
2005 年 63 巻 12 号 p. 1218-1231
詳細
2005 年 63 巻 12 号 p. 1218-1231
Silk-fibroin supported palladium catalyst (Pd/Fib) was prepared by incipient wetness impregnation with a rust-colored MeOH solution of Pd (OAc)2. After the palladium (II) was absorbed completely in the fibroin, the zero-valent Pd was formed on the fibroin fiber via reduction by MeOH as a reductant. The Pd/Fib catalyst, black-colored yarn, shows efficient chemoselectivity in hydrogenation of acetylene, olefin and azide functionalities in the presence of aromatic ketones, aldehydes and halides, benzyl esters and N-Cbz protective groups which are readily reduced under the Pd/C or Pd/C(en)-catalyzed hydrogenation conditions.
