Different Reactivity Patterns of Trimethylsilyl- and Phenyl-Substituted Propargylallenes: Fe<sub>2</sub>(CO)<sub>9</sub>- and [Ag]<sup>+</sup>-Promoted Cyclizations
作者:Pascal Oulié、Lena Altes、Sandra Milosevic、Romain Bouteille、Helge Müller-Bunz、Michael J. McGlinchey
DOI:10.1021/om9009872
日期:2010.2.8
onto the alkyne to furnish a cyclopentadiene that bears a 9-methoxy- or 9-hydroxy-fluorenyl substituent and is also spiro-bonded to a second fluorenyl moiety. The reaction of 3,3-(biphenyl-2,2′-diyl)-1-bromo-1-phenylallene with Fe2(CO)9 yields the novel bicyclo[3.2.0]heptadienone 21, which possesses two phenyl groups and is also spiro-linked to two fluorenyl fragments. All new compounds were characterized
二苯基-炔丙基亚丙基[3,3-(联苯基-2,2'-二基)-1-苯基-1- 9-[(苯基乙炔基)-9 H-芴基}亚芳基] 9的热重排生成双-芴基-双亚丙烯10经历电环化反应形成3,4-二(芴基)-1,2-二苯基环丁烯12,其中重叠的芴基形成C 2对称性,炔丙基亚勒烯9与羰基铁反应生成形成15,其中(η 5 -芴基)的Fe(CO)2该部分直接和通过桥连的═C(Ph)-C(═O)-键与具有苯基和螺旋键合的芴基取代基的环丁烯环相连。二苯基-炔丙基烯丙基9及其双(三甲基甲硅烷基)炔丙基烯丙基类似物2分别与Co 2(CO)8反应以分别提供相应的炔烃-Co 2(CO)6络合物14和13。二苯基-炔丙基烯丙基9或单(三甲基甲硅烷基)炔丙基烯丙基25的处理在甲醇或水中的硝酸银溶液中,将丙二烯环化到炔烃上,得到带有9-甲氧基或9-羟基芴基取代基的环戊二烯,该环戊二烯也螺旋键合至第二个芴基部分。3,3-(联苯-2