Synthesis of 4-oxahexacyclo[5.4.1.02,6.03,10.05,9.08,11]dodecane-3-carboxylic acid
作者:Frans J.C. Martins、Agatha M. Viljoen、Hendrik G. Krugera、Philippus L. Wessels
DOI:10.1016/s0040-4020(01)80168-x
日期:1993.1
11]dodecane-3-carboxylic acid was obtained from hydrolysis of the cyano precurser which was synthesised by a Strecker reaction from exo-11-bromopentacyclo[5.4.0.02,6.03,10.05,9]undecane-8-one. Endo-11-hydroxypentacyclo[5.4.0.02,6.03,10.05,9]undecane-8-one has not shown any reactivity towards Strecker reagents at room temperature. The structures of the title compound and corresponding cyano and ester derivatives
Synthesis of 1-substituted 12-oxahexacyclo[7.2.1.02,8.03,7.04,11.06,10]dodecanes and their transformation into pentacyclo[6.3.0.02,6.03,10.05,9]undecane derivatives
作者:Alexander M. Aleksandrov、Ram P. Kashyap、Tynis J. Pehk、Alexander E. Petrenko、William H. Watson
DOI:10.1021/jo00059a039
日期:1993.3
The reaction of nucleophilic reagents (organomagnesium and organosodium compounds containing active methylene groups) with exo-11-bromopentacyclo[5.4.0.0(2,6).0(3,10).0(5,9)]undecan-8-one leads to the formation of 1-substituted-12-oxahexacyclo[7.2.1.0(2,8).0(3,7).0(4,11).0(6,10)] dodecanes which can be used in the synthesis of trishomocubane derivatives. It is shown, using the 1-methyl- and 1-phenyl-substituted 12-oxadodecanes, that iodotrimethylsilane readily cleaves the ether bond at C(l). The resulting carbonium ions rearrange to form 1,7,11-trisubstituted pentacyclo[6.3.0.0(2,6).0(3,10).0(5,9)]-undecanes.
Aleksandrov, A. M.; Turov, A. V.; Kornilov, M. Yu., Journal of Organic Chemistry USSR (English Translation), 1991, vol. 27, # 12, p. 2284 - 2289
作者:Aleksandrov, A. M.、Turov, A. V.、Kornilov, M. Yu.、Kukhar, V. P.