摘要
本文报道了N-烯丙基、N-(10-十一碳烯基)氮杂15-冠-5与氨杂18-冠-6的合成、硅氢化、固载化,以及所得气相法二氧化硅固载的氮杂冠醚对苦味酸钠、钾的络合容量和正溴己烷碘代反应的相转移催化活性。
Undecenyl dihydroxyethyl amine has been synthesized by the alkyla-tion of dihydroxyethyl amine with undecenyl chloride in the presence of a base and PEG-400 as phase transfer catalyst. The subseqver.t reaction with. polyethylene glycol ditosylates gave N-undecenyl monoaza-15-crown-5 and -18-crown-6. These alkenyl azacrown ethers and N-allyl monoaz a-l5-crown-5 and -18-crown-6 were hydrosilylated with triethoxysilane in the presence of tetrakis(tri-phenylphosphine) platinum complex as catalyst, respectively, and the terminal addition adducts, w-triethoxysilylalkyl azacrown ethers, were obtained, After immobilization of the latter compounds on fumed silica, four new silica-bound polysiloxane supported azacrown ethers formed. All fo them possessed a high thermostability. The complexation capacities of the above mentioned azacrown ethers and their immobilized products for sodium and potassium picratewere determined, and their PTC activity for the nucleophilic substitution reaction of 1-bromohexane by sodium or potassium iodide were investigated. The yield of 1-iodohexane reached 100% in some cases.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1989年第3期249-253,共5页
Chemical Journal of Chinese Universities
关键词
氮杂冠醚
硅氢化
固载化
(N-10undecenyl) azacrown ethers, Hydrosilylation, Supported azacrown. ethers, Phase transfer catalysis
