Vinylic C-F bond activation with low-valent zirconocene: the generation and cross-coupling reactions of 1-fluorovinylzirconocene

被引:55
作者
Fujiwara, M [1 ]
Ichikawa, J [1 ]
Okauchi, T [1 ]
Minami, T [1 ]
机构
[1] Kyushu Inst Technol, Dept Appl Biochem, Kitakyushu, Fukuoka 8048550, Japan
关键词
coupling reactions; fluorine; fluorine compounds; olefins; zirconium; zirconium compounds;
D O I
10.1016/S0040-4039(99)01491-4
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
(p-2,2-Difluorovinyloxyphenyl)dimethylamine, readily obtained from 2,2,2-trifluoroethanol, is treated with zirconocene equivalent 'Cp2Zr' to generate thermostable 1-fluorovinylzirconocene via a C-F bond cleavage. This 1-fluorovinylzirconocene can be used for C-C bond formation through the cross-coupling with aryl iodides in the presence of palladium catalyst and zinc iodide, leading to (Z)-1-aryl-2-(p-dimethylaminophenoxy)-1-fluoroolrfins in good yields. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:7261 / 7265
页数:5
相关论文
共 28 条
[1]   Remarkable regioselectivity in the reaction between [(η5-C5Me4H)RhCl(μ-Cl)]2 and (C6F5)2PCH2CH2P(C6F5)2:: synthesis of a chiral-at-metal rhodium complex cation via carbon-fluorine and -hydrogen bond activation and carbon-carbon bond formation [J].
Atherton, MJ ;
Holloway, JH ;
Hope, EG ;
Saunders, GC .
JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1998, 558 (1-2) :209-212
[2]  
BEY P, 1991, ACS SYM SER, V456, P105
[3]   Recent advances in C-F bond activation [J].
Burdeniuc, J ;
Jedlicka, B ;
Crabtree, RH .
CHEMISCHE BERICHTE-RECUEIL, 1997, 130 (02) :145-154
[4]   Catalytic photodefluorination of perfluoroalkanes to perfluoroalkenes with a ferrocene photosensitizer [J].
Burdeniuc, J ;
Crabtree, RH .
ORGANOMETALLICS, 1998, 17 (08) :1582-1586
[5]   FLUORINATED ORGANOMETALLICS - VINYL, ALKYNYL, ALLYL, BENZYL, PROPARGYL AND ARYL FLUORINATED ORGANOMETALLIC REAGENTS IN ORGANIC-SYNTHESIS [J].
BURTON, DJ ;
YANG, ZY ;
MORKEN, PA .
TETRAHEDRON, 1994, 50 (10) :2993-3063
[6]  
Chen C, 1999, J ORG CHEM, V64, P3476
[7]   C-F bond activation by aryl carbocations: Conclusive intramolecular fluoride shifts between carbon atoms in solution and the first examples of intermolecular fluoride ion abstractions [J].
Ferraris, D ;
Cox, C ;
Anand, R ;
Lectka, T .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (18) :4319-4320
[8]   Zirconocene catalyzed dehalogenation of aromatic halides by alkylmagnesium reagents [J].
Hara, R ;
Sun, WH ;
Nishihara, Y ;
Takahashi, T .
CHEMISTRY LETTERS, 1997, (12) :1251-1252
[9]   NEW FLUORINE-CONTAINING BUILDING-BLOCKS FROM TRIFLUOROETHANOL .2. [J].
HOWARTH, JA ;
OWTON, WM ;
PERCY, JM ;
ROCK, MH .
TETRAHEDRON, 1995, 51 (37) :10289-10302
[10]   Novel 2,2-difluorovinylzirconocene: A facile synthesis of monosubstituted gem-difluoroolefins via its cross-coupling reaction. [J].
Ichikawa, J ;
Fujiwara, M ;
Nawata, H ;
Okauchi, T ;
Minami, T .
TETRAHEDRON LETTERS, 1996, 37 (48) :8799-8802