作者:Kimihiko Hori、Naotake Takaishi、Yoshiaki Inamoto
DOI:10.1246/bcsj.61.2669
日期:1988.7
effects of the base, molar ratio of the reagent, solvent and reaction temperature on the cycloalkylation of norcamphor with 1,4-dibromobutane were explored, and optimum conditions for the preparation of spiro[bicyclo[2.2.1]heptane-2,1′-cyclopentan]-3-one have been established. 3-exo-(4-Bromobutyl)norcamphor was isolated and characterized as a reaction intermediate. A series of spironorcamphors with various
探讨了碱、试剂摩尔比、溶剂和反应温度对正樟脑与1,4-二溴丁烷环烷基化反应的影响,以及制备螺[双环[2.2.1]庚烷-2,1的最佳条件'-环戊烷]-3-one已经建立。3-外-(4-溴丁基) 正樟脑被分离并表征为反应中间体。使用 1:1.5:2.5 比例的去甲樟脑 /α,ω-二溴烷烃 /NaNH2 在 Et2O 中以良好的收率获得了一系列具有各种环大小的螺樟脑。