Synthesis of Bridged Bicyclic Molecules using Halocarbenes. Derivatives of bicyclo[4.2.1]nonane
作者:Charles W. Jefford、Ulrich Burger、Fran�ois Delay
DOI:10.1002/hlca.19730560329
日期:1973.4.25
trichloroacetate) to bicyclo[3.2.1]oct-2-ene, its 3-chloro and exo-3,4-dichloro derivatives gives the exo 1 : 1 adducts in yields of 94, 89 and 48%. By suitable chemical reactions of these adducts, convenient syntheses of bicyclo[4.2.1]nona-2,4-diene and bicyclo[4.2.1]non-3-ene, together with their monochloro, dichloro and trichloro derivatives are obtained. Bicyclo[4.2.1]-nonan-3-one is also obtained from bicyclo[4
将二氯卡宾(由甲醇钠和三氯乙酸乙酯相互作用产生)加至双环[3.2.1] oct-2-ene,其3-氯和exo -3,4-dichloro衍生物中,得到exo 1:1加合物。产率分别为94%,89%和48%。通过这些加合物的合适的化学反应,可以方便地合成双环[4.2.1] nona-2,4-二烯和双环[4.2.1] non-3-ene,以及它们的一氯,二氯和三氯衍生物。双环[4.2.1]-壬烷-3-酮还可以从双环[4.2.1]-壬-3-烯以易于获得的5-羟甲基降冰片-2-烯为原料,以20%的总产率合成。