An acid-catalyzed macrolactonization protocol.

An acid-catalyzed macrolactonization protocol.
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酸催化大环内酯化方案。

DOI:
10.1021/ol026726c
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发表时间:
2002
期刊:
影响因子:
5.2
通讯作者:
Chisholm,JohnD
Chisholm,JohnD
中科院分区:
化学1区
文献类型:
--
作者:
Trost,BarryM;Chisholm,JohnD

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通过在酯交换反应中使用乙烯基酯,开发了一种不含任何碱基的高效大内酯反应方案。将羟基酸与乙氧基乙炔在甲苯中反应2摩尔%[RuCl2(对伞花烃)]2,然后加入樟脑磺酸或反加成,可得到产率较高的大内酯。
An efficient macrolactonization protocol devoid of any base was developed derived from the use of vinyl esters in transesterification. Subjecting a hydroxy acid and ethoxyacetylene to 2 mol % [RuCl2(p-cymene)]2in toluene followed by addition of camphorsulfonic acid or inverse addition provided macrolactones in good yields.