作者:Joseph J. Gajewski、Charles W. Benner、Bruce N. Stahlly、Ralph F. Hall、Ronald I. Sato
DOI:10.1016/0040-4020(82)80166-x
日期:1982.1
cis- and trans - 2,3 - Dimethylenemethylenecyclopropane (C and T) interconvert at 160.0° with a small normal kinetic isotope effect (KIE) when the exo-methylene is deuterated, but the 1,3-shift products, 2-methylethylidenecyclopropane, show a large normal KIE, 1.35 and 1.31, when formed from C and T, respectively. This data can be interpreted in terms of either parallel reactions or a common trimethylenemethane
Titanium-mediated intramolecular cyclization of tethered propargyl alcohol derivatives. Access to exocyclic bis-allenes and cyclobutene derivatives
作者:Christophe Delas、Hirokazu Urabe、Fumie Sato
DOI:10.1016/s0040-4039(01)00666-9
日期:2001.6
Treatment of tethered bis-propargyl alcohol derivatives with (η2-propene)Ti(O-i-Pr)2 afforded four- and five-membered rings bearing conjugated exocyclic bis-allenes. In the case of six- and seven-memberedrings, bicyclic cyclobutenes were obtained in the same pot most likely via the intermediate bis-allenes.
Chemistry of gem-Dihalocyclopropanes. V.<sup>1</sup> Formation of Tricyclo[4.1.0.0<sup>4,6</sup>]heptane and Derivatives
作者:Lars Skattebøl;
DOI:10.1021/jo01347a014
日期:1966.9
Vo-Quang,Y. et al., Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, 1964, vol. 258, p. 4586 - 4589
作者:Vo-Quang,Y. et al.
DOI:——
日期:——
[6π+2π]-Cycloaddition of α,ω-Diallenes and α,ω-Diacetylenes to 1,3,5-Cycloheptatriene in the Presence of TiCl4-Et2AlCl
作者:V. A. D’yakonov、G. N. Kadikova、L. M. Khalilov、U. M. Dzhemilev
DOI:10.1134/s1070428013080071
日期:2013.8
[6 pi+2 pi]-Cycloaddition of alpha,omega-diallenes and alpha,omega-bis(trimethylsilyl)diacetylenes to 1,3,5-cycloheptatriene in the presence of a two-component catalytic system TiCl4-Et2AlCl was performed that led to the formation of bis(endo-bicyclo[4.2.1]nona-2,4-dienes) and bis(8-trimethylsilyl-endo-bicyclo[4.2.1]nona-2,4,7-trienes) linked by polymethylene spacer in 69-86% yields.