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MULTICOMPONENT REACTIONS: SYNTHESIS OF SPIROCYCLIC TETRAHYDROPYRAN DERIVATIVES BY PRINS CYCLIZATION.
Heterocycles ( IF 0.6 ) Pub Date : 2002-01-01 , DOI: 10.3987/com-02-s(m)63
Arun K Ghosh 1 , Dongwoo Shin 1 , Gary Schiltz 1
Affiliation  

Substituted spirocyclic tetrahydropyranyl mesylates and tosylates have been synthesized in good yields using a Prins-type cyclization of various cyclic ketones, a homoallylic alcohol and either methanesulfonic or p-toluenesulfonic acid under non-aqueous conditions. The mesylates thus produced could then be transformed into the corresponding Boc-protected amines using an efficient two step procedure.

中文翻译:

多组分反应:通过 PRINS 环化合成螺环四氢吡喃衍生物。

在非水条件下,使用各种环酮、高烯丙醇和甲磺酸或对甲苯磺酸的 Prins 型环化,已以良好的收率合成了取代的螺环四氢吡喃基甲磺酸酯和甲苯磺酸酯。然后可以使用有效的两步程序将由此产生的甲磺酸盐转化为相应的 Boc 保护的胺。
更新日期:2019-11-01
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