1) Claisen method
克莱森法
2) claisen flask
克莱森瓶
3) Claisen condensation
克莱森缩合
1.
2,6-Diacteylpyridine was synthesized via esterification and the Claisen condensation using 2,6-pyridinedicarboxylic acid as the starting material,with the metallic sodium being used as the base reagent for the first time.
以2,6-吡啶二甲酸为原料,经酯化后以金属钠作为新型碱性试剂,通过克莱森缩合制备出标题化合物,两步反应收率分别高达93。
2.
Ethyl-dibenzoylmethane,which is one of the good light absorbents,was synthesized by using benzoyl acetate and ethyl phenyl ketone as their original raw materials,dibenzoylmethane was obtained through Claisen condensation,and then ethyl-dibenzoylmethane was got by alkylation.
该法以苯甲酸乙酯和苯乙酮为起始原料,经克莱森缩合生成二苯甲酰甲烷,再与溴乙烷进行烷基化反应,最后生成乙基二苯甲酰甲烷,并对合成产物进行结构分析及紫外光吸收性能表征。
4) Claisen rearrangement
克莱森重排
1.
The key steps were the iodization rearrangement of 2,3 epoxy alcohol 6 and Claisen rearrangement of allyl vinyl ether 8.
其关键反应步骤是 2 ,3-环氧醇的碘代重排反应和烯丙基烯基醚的克莱森重排反应 。
5) Claisen flash
克莱森烧瓶
6) levinsion algorithm
莱文森算法
补充资料：克莱门森还原反应
克莱门森还原反应是在盐酸溶液中，用锌汞齐将醛或酮中的羰基还原为亚甲基的化学反应。
该反应必须在强酸性条件下进行。对酸敏感的羰基化合物不可使用该方法还原，但可考虑采用沃尔夫-凯惜纳-黄鸣龙法。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条