6-hydroxymethyl-1,2,4-trioxanes and derivatives: An alternative 1,2,4-trioxane synthesis from β′γ′-unsaturated β-hydroxyhydroperoxides
作者:A.J. Bloodworth、Karen A. Johnson
DOI:10.1016/0040-4039(94)80048-0
日期:1994.10
Allylic hydroperoxides CH2:C(Ph)CH(OOH)CH2OX (X H, CONHPh, Ac), from regiospecific photooxygenation of allylic alcohols CH3C(Ph):CHCH2OX, form hemiperoxyacetals with aldehydes or ketones which upon cyclisation with mercury(II) trifluoroacetate then reduction with sodium borohydride diastereoselectively afford 1,2,4-trioxanes with XOCH2 substituents at C-6.
烯丙基醇CH 3 C(Ph):CHCH 2 OX的区域特异性光氧化作用的烯丙基氢过氧化物CH 2:C(Ph)CH(OOH)CH 2 OX(X H,CONHPh,Ac)与醛或酮形成半过氧缩醛用三氟乙酸汞(II)环化后,再用硼氢化钠非对映选择性还原,得到在C-6具有XOCH 2取代基的1,2,4-三恶烷。