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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 40, Number 9
JKCSEZ 40(9)
June 20, 1996 

Synthesis of New Bis-Crown Ether (Ⅱ): Bis-Crown Ether with Siloxane Moiety

새로운 비스-크라운 에테르의 합성(제 2보):실옥산 사슬에 연결된 비스-크라운 에테르
Seung Hyun Chang, Jae Youg Kim, Kwang Bo Chung

실옥산 사슬에 크라운 에테르가 연결된 유연성이 큰 새로운 비스-크라운 에테르를 합성하였다. 1,3-Bis(trimethylsiloxy)-1,3-dimethyl-1,3-di(4'-ethylbenzo-18-crown-6) disiloxane (1)은 백금촉매 존재하에서 1,3-bis(trimethylsiloxy)-1,3-dimethyl-1,3-disiloxane과 4'-vinylbenzo-18-crown-6의 반응에 의해 합성하였다. 4'-Vinylbenzo-18-crown-6은 catechol과 무수초산의 반응으로부터 5단계를 거쳐 합성하였다.

New bis-crown ether containing siloxane chain was synthesized. 1,3-Bis(trimethylsiloxy)-1,3-dimethyl-1,3-di(4'-ethylbenzo-18-crown-6) disiloxane (1) was synthesized by reaction of 4'-vinylbenzo-18-crown-6 with 1,3-bis(trimethylsiloxy)-1,3-dimethyl-1,3-disiloxane in the presence of Pt catalyst. 4'-Vinylbenzo-18-crown-6 was prepared through five-step reaction which started from the reaction of catechol and acetic anhydride.

635 - 639
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