Ketene imminium ion (4), diphenyl ketene, tosyl isocyanate and tetracyanoethylene add selectively to the semicyclic double bond of 1. This is interpreted to result from the polarity of the semicyclic double bond in 1.
Synthesis of tetracyclo[3.3.0.02.4.03.6]oct-7-ene and some of its derivatives
作者:J. Stapersma、I.D.C. Rood、G.W. Klumpp
DOI:10.1016/0040-4020(82)85065-5
日期:1982.1
A full account is given of the synthesis of the title compound, its 7,8-dihydro-analogue and of some of itsderivatives.
完整说明了标题化合物,其7,8-二氢类似物及其某些衍生物的合成。
An unusual bilaterally flanked olefin; X-ray crystal structure of 5,14;7,12-bis-(o-benzeno)-6,13-ethenylidene-5,5a,6,6a,7,12,12a,13,13a,14-decahydropentacene
作者:Douglas N. Butler、Indranil Gupta、Winnie Wong Ng、Stanley C. Nyburg
DOI:10.1039/c39800000596
日期:——
Spectroscopic and chemical evidence reveals the intramolecular π–π orbital proximity in the novel Diels–Alder adducts (7) and (9); the X-raycrystalstructure of (9) is reported.