Catalytic amide base system generated <i>in situ</i> for 1,3-diene formation from allylbenzenes and carbonyls
作者:Masanori Shigeno、Akihisa Kajima、Kunihito Nakaji、Kanako Nozawa-Kumada、Yoshinori Kondo
DOI:10.1039/d0ob02007a
日期:——
The amide base generated in situ from tetramethylammonium fluoride and N(TMS)3 catalyzes the synthesis of 1,3-diene from an allylbenzene and carbonyl compound. The system is applicable to the transformations of a variety of allylbenzenes with functional groups (halogen, methyl, phenyl, methoxy, dimethylamino, ester, and amide moieties). Acyclic and cyclic diaryl ketones, pivalophenone, pivalaldehyde
由氟化四甲基铵和N(TMS)3原位生成的酰胺基催化从烯丙基苯和羰基化合物的合成1,3-二烯。该系统适用于各种具有官能团(卤素,甲基,苯基,甲氧基,二甲基氨基,酯和酰胺部分)的烯丙基苯的转化。无环和环状二芳基酮,新戊苯酮,新戊醛和异丁酮苯用作偶联伙伴。还阐明了反式β-甲基对苯二酚在产物形成中的作用。