서지주요정보
Rhodium(Ⅰ) catalyzed regioselective alkylation of olefins and aromatic rings by C-H bond activation = 로듐촉매의 탄소-수소 결합활성에 의한 올레핀과 방향족고리의 지역선택적 알킬화반응
서명 / 저자 Rhodium(Ⅰ) catalyzed regioselective alkylation of olefins and aromatic rings by C-H bond activation = 로듐촉매의 탄소-수소 결합활성에 의한 올레핀과 방향족고리의 지역선택적 알킬화반응 / Yeong-Gweon Lim.
발행사항 [대전 : 한국과학기술원, 1996].
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등록번호

8006656

소장위치/청구기호

학술문화관(문화관) 보존서고

DCH 96007

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There has been great interest in transition metal mediated C-H bond activation. One goal is to develop new routes for selective C-C bond formation. Cyclometallation is well known as a good method for activation of olefinic and aromatic C-H bonds. We have found that 2-vinylpyridines reacted with olefins in the presence of rhodium(I) complex such as Wilkinson's complex as catalyst to result in the alkylated vinylpyridines according to the anti-Markownikoff's rule. The reaction of 6-methyl-2-vinylpyridine or 2-vinylpyridine with olefins produced the alkylated products together with dimeric products of the substrate. But, α-substituted vinylpyridines afforded the corresponding alkylated products in high yields. In the case of β-substituted vinylpyridines, four different alkylated products were obtained. A regioselective alkylation of the ortho position of various 2-phenylpyridines has been examined : 2-phenylpyridine reacted with olefins to give the ortho-alkylated product and doubly alkylated product (9:1). The meta or para alkylated products could not be detected. In the case of 2-(p-tolyl)pyridine, the ratio of the doubly alkylated product increased. On the other hand, 3-methyl-2-phenylpyridine gave mono ortho alkylated product exclusively under the same conditions. The regioselective alkylation of olefinic C-H bond of 2-(1-cyclohexenyl)pyridine was carried out. 2-(1-Cyclohexenyl)pyridine reacted with olefins in the presence of Rh (I) catalyst to give the alkylated product at the olefinic position regiospecifically. When the ortho alkylation of benzylideneamines was examined, the regioselective mono and bisalkylated products were obtained in low yields.

서지기타정보

서지기타정보
청구기호 {DCH 96007
형태사항 viii, 180 p. : 삽도 ; 26 cm
언어 영어
일반주기 저자명의 한글표기 : 임영권
지도교수의 영문표기 : Yong-Hae Kim
지도교수의 한글표기 : 김용해
학위논문 학위논문(박사) - 한국과학기술원 : 화학과,
서지주기 Reference : p. 170-180
주제 Rh(I)
Alkylation
C-H Bond Activation
Olefin
Aromatic Ring
로듐, 알킬화반응
탄소-수소 결합활성
올레핀
방향족고리
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