Synthesis of (Z)-tributylstannyl enynes: systematic studies of Sonogashira cross-coupling reactions between (E)-1-iodovinyl-1-tributylstannanes and terminal acetylenes using amines or tetrabutylammonium hydroxide (TBAOH) as activator
作者:Carlos E.D. Nazario、Amanda S. Santana、Cristiane Y. Kawasoko、Carlos A. Carollo、Gabriela R. Hurtado、Luiz H. Viana、Sandro L. Barbosa、Palimécio G. Guerrero、Francisco A. Marques、Vânia B. Dabdoub、Miguel J. Dabdoub、Adriano C.M. Baroni
DOI:10.1016/j.tetlet.2011.06.004
日期:2011.8
Sonogashira cross-coupling reactions involving (E)-iodo vinyl stannanes and terminal acetylenes were carried out in the presence of Pd(PPh(3))(4), Cul and several amines, affording (Z)-tributylstannyl enynes in moderate to good yields (62-91%). Utilizing the catalytic system containing Pd(PPh(3))(4) (5%), Cul (10%), and TBAOH (40% in aqueous media) as activator, better yields (72-91%) and lower reaction times were achieved. (C) 2011 Elsevier Ltd. All rights reserved.
A Facile Regio- and Stereocontrolled Synthesis of (z)-1,3-Enylnylstannanes<i>via</i>Cross Coupling of (E)-α-Iodovinylstannanes with Terminal Alkynes
作者:Xian Huang、Ping Zhong
DOI:10.1080/00397919908085971
日期:1999.10
Conjugated enynes bearing a stannyl group were conveniently obtained under mild condition via the cross coupling of the corresponding CE)-alpha-iodovinylstannanes with terminal alkynes in the presence of Pd(PPh3)(4) and CuBr.
Huang, Xian; Zhong, Ping, Journal of the Chemical Society. Perkin transactions I, 1999, # 11, p. 1543 - 1545