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Chen Zhengguo, Wang Fuhua, Zhang Chaocan, Xu Yuwu. CATALYTIC BEHAVIOR OF SOME TRIPHASE CATALYSTS IN THE NUCLEOPHILIC SUBSTITUTION AND DICHLOROCARBENE ADDITION REACTIONS[J]. Chinese Journal of Applied Chemistry,
;1985, 2(1): 8-14.
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Catalytic characteristics of four types of triphase catalysts: polymeric crown ethers (A), polymeric azacrown ethers(B),modified phenol formalde hyderesin containing benzo-15-crown-5 (C) and crosslinked acyclic polypode polyethers (D) in the cyano- and iodo-substitutions and the addition reaction of dichlorocarbene to styrene were studied. The catalytic activity of polymers was found in following sequence: (B) (with>NR in the ring) >(A) >(C) >(D) >(B) (with>NH in the ring). The best one among the polymeric catalysts studied is that containing azacrown ether with N-alkyl group.
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