Trost, Barry M.; Müller, Thomas J. J.; Martinez, Jose, Journal of the American Chemical Society, 1995, vol. 117, # 7, p. 1888 - 1899
作者:Trost, Barry M.、Müller, Thomas J. J.、Martinez, Jose
DOI:——
日期:——
Addition of zinc homoenolates to acetylenic esters and amides: a formal [3 + 2] cycloaddition
作者:Michael T. Crimmins、Philippe G. Nantermet、B. Wesley Trotter、Isabelle M. Vallin、Paul S. Watson、Lynne A. McKerlie、Tracy L. Reinhold、Adrian Wai Hing Cheung、Katherine A. Stetson
DOI:10.1021/jo00057a013
日期:1993.2
The copper-catalyzed conjugate addition-cycloacylation reaction of zinc homoenolates with acetylenic esters or acetylenic amides is described. The zinc homoenolate is prepared from [(ethoxycyclopropyl)oxy]trimethylsilane and zinc chloride in ether. Addition of an acetylenic amide or ester provides 2-carboxamido-or 2-carboalkoxy-3-alkylcyclopent-2-en-1-ones in good to excellent yields. The reaction can be carried out in the presence of a variety of sensitive functional groups including epoxides, alpha,beta-unsaturated esters, acetals, silyl ethers, and furans.
Synthesis of alkyl 4-hydroxy-2-alkynoates
作者:M. Mark Midland、Alfonso Tramontano、John R. Cable
DOI:10.1021/jo01289a006
日期:1980.1
A route to Z-enediynes via Pd catalyzed alkyne additions
作者:Barry M. Trost、Iwao Hachiya、Matthias C. McIntosh
DOI:10.1016/s0040-4039(98)01392-6
日期:1998.9
The combination of a Pd catalyzed mixed addition of a terminal alkyne with an internal alkyne and radical catalyzed E-Z isomerization provides an atom economical route to Z-enediynes. (C) 1998 Elsevier Science Ltd. All rights reserved.
Addition of zinc homoenolates to acetylenic esters: a formal [3+2] cycloaddition