Manganese-(<scp>II</scp>) and (<scp>III</scp>)-mediated free-radical cyclisation of alkenes, β-keto esters and molecular oxygen
作者:Takashi Yamada、Yoko Iwahara、Hiroshi Nishino、Kazu Kurosawa
DOI:10.1039/p19930000609
日期:——
a mixture of manganese(II) and manganese(III) acetates, and molecular oxygen yielded substituted 1, 2-dioxan-3-ols 3 in 14–95% yields. Cobalt(III) acetate, potassium permanganate, lead(IV) acetate, copper(II) acetate, chromium(VI) trioxide, thallium(III) acetate, ammonium cerium(IV) nitrate and iron(III) perchlorate were also used in place of manganese(III) acetate. Effects on the product yields of
在乙酸锰(II)和乙酸锰(III)的混合物的存在下,取代的乙烯与β-酮酸酯的反应,以及分子氧以14-95%的产率生成了取代的1,2-二恶烷-3-醇3。也就地使用了乙酸钴(III),高锰酸钾,乙酸铅(IV),乙酸铜(II),三氧化铬(VI),乙酸th(III),硝酸铈铈(IV)和高氯酸铁(III)锰(III)醋酸盐。已经研究了对烯烃和β-酮酸酯中取代基的产物收率的影响,并讨论了反应机理。