Transition metal-free cross-dehydrogenative coupling acylation of coumarins by the K2S2O8/Aliquat 336 catalytic system: a versatile strategy towards 4-aroylcoumarin derivatives

Adib Mehdi; Pashazadeh Rahim; Rajai-Daryasarei Saideh; Kabiri Roya; Jahani Mehdi

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Transition metal-free cross-dehydrogenative coupling acylation of coumarins by the K2S2O8/Aliquat 336 catalytic system: a versatile strategy towards 4-aroylcoumarin derivatives

机译：通过K2S2O8 / Aliquat 336催化系统过渡金属辛的无金属的交式脱氢酰化酰化：朝向4-aroylcoumarin衍生物的通用策略

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A new and efficient transition metal-free oxidative cross-dehydrogenative coupling (CDC) reaction is described for the preparation of 4-aroylcoumarin derivatives. In this protocol aldehydes have been used as acylating agents for acylation of 3-substituted coumarins through C(sp(2))-C(sp(2)) bond formation using the K2S2O8/Aliquat 336 system as an inexpensive and environmentally friendly reagent. The reactions proceeded in acetonitrile at 80 degrees C for 2-3 h to afford the corresponding 4-aroylcoumarin derivatives in high yields.

机译：描述了一种新的和有效的过渡无金属无金属氧化交式脱氢偶联偶联（CDC）反应用于制备4- aroylcoumarin衍生物。在该方案中，醛被用作酰化剂，用于通过C（SP（2））-C（SP（2）） - C（SP（2））键合形成为廉价和环保的试剂的C（SP（2）） - C（SP（2））键合的酰化剂。在80℃下在乙腈中进行2-3小时，得到相应的4-aroylcoumarin衍生物，高产率。

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来源
《RSC Advances》 |2016年第112期|共5页
作者
Adib Mehdi; Pashazadeh Rahim; Rajai-Daryasarei Saideh; Kabiri Roya; Jahani Mehdi;
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Univ Tehran Coll Sci Sch Chem POB 14155-6455 Tehran Iran;

Univ Tehran Coll Sci Sch Chem POB 14155-6455 Tehran Iran;

Univ Tehran Coll Sci Sch Chem POB 14155-6455 Tehran Iran;

Tabriz Univ Fac Chem NMR Lab Tabriz Iran;

Univ Tehran Coll Sci Sch Chem POB 14155-6455 Tehran Iran;

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正文语种 eng
中图分类化学;
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1. Transition metal-free cross-dehydrogenative coupling acylation of coumarins by the K2S2O8/Aliquat 336 catalytic system: a versatile strategy towards 4-aroylcoumarin derivatives [J] . Adib Mehdi, Pashazadeh Rahim, Rajai-Daryasarei Saideh, RSC Advances . 2016,第112期

机译：通过K2S2O8 / Aliquat 336催化系统过渡金属辛的无金属的交式脱氢酰化酰化：朝向4-aroylcoumarin衍生物的通用策略
2. Transition Metal-Free Cross-Dehydrogenative Coupling Reaction of Coumarins with Acetonitrile or Acetone [J] . Zhang Rongxing, Jin Shengzhou, Liu Qian, The Journal of Organic Chemistry . 2018,第21期

机译：用乙腈或丙酮的香豆苷的无金属的无金属交联偶联反应
3. Metal-Free Cross-Dehydrogenative Coupling (CDC): Molecular Iodine as a Versatile Catalyst/Reagent for CDC Reactions [J] . Parvatkar Prakash T., Manetsch Roman, Banik Bimal K. Chemistry, an Asian journal . 2019,第1期

机译：无金属交叉脱氢偶联（CDC）：作为CDC反应的多种催化剂/试剂的分子碘
4. Cu-catalyzed cross-dehydrogenative coupling: A versatile strategy forC–C bond formations via the oxidative activation of sp3C–H bonds [O] . Zhiping Li, D. Scott Bohle, Chao-Jun Li 2006

机译：铜催化的交叉脱氢偶联：一种通用的策略通过sp3的氧化活化形成CC键碳氢键
5. Transition Metal-Free Cross-Dehydrogenative Coupling Reaction of Coumarins with Acetonitrile or Acetone [O] . -1

机译：用乙腈或丙酮的香豆苷的无金属的无金属交联偶联反应

Transition metal-free cross-dehydrogenative coupling acylation of coumarins by the K2S2O8/Aliquat 336 catalytic system: a versatile strategy towards 4-aroylcoumarin derivatives

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