Dispiro[cyclohexane-1,1′-(1′,7′-dihydrocyclopenta[f]azulenium)-7′,1′′-cyclohexane] perchlorate, a new highly stable hydrocarbon cation
作者:Mitsunori Oda、Hitoshi Kainuma、Ryuta Miyatake、Shigeyasu Kuroda
DOI:10.1016/s0040-4039(02)00604-4
日期:2002.5
The title cation was synthesized from 1,6-diacetylcyclohepta-1,3,5-triene by a six-step sequence involving an aldol reaction, the Nazarov cyclization, the Shapiro reaction and hydride abstraction, and its pKR+ value was found to be 13.2, providing a new access to highly stable hydrocarbon cations. (C) 2002 Elsevier Science Ltd. All rights reserved.