Primary and secondary alcohols are efficiently converted to the corresponding alkyl halidesunderneutralconditions.
伯醇和仲醇在中性条件下可有效地转化为相应的烷基卤。
MUNYEMANA, FRANCOIS;FRISQUE-HESBAIN, ANNE-MARIE;DEVOS, ALAIN;GHOSEZ, LEON, TETRAHEDRON LETT., 30,(1989) N3, C. 3077-3080
作者:MUNYEMANA, FRANCOIS、FRISQUE-HESBAIN, ANNE-MARIE、DEVOS, ALAIN、GHOSEZ, LEON
DOI:——
日期:——
A mild method for the replacement of a hydroxyl group by halogen: 3. the dichotomous behavior of α-haloenamines towards allylic and propargylic alcohols
作者:François Munyemana、Luc Patiny、Léon Ghosez
DOI:10.1016/j.tet.2021.132148
日期:2021.6
tetramethyl-α-halo-enamines is reported. Primary allylic and primary and secondary propargylic alcohols gave the corresponding halides in high yields. Secondary allylic and propargylic alcohols yielded the corresponding secondary halides but the reaction also produced some rearranged primary halides (I > Br > Cl). The reactions with tertiary allylic and tertiary propargylic alcohols gave several products and was
Palladium-Catalyzed Cascade Allylative Dicarbofunctionalization of Aryl Phenol-Tethered Alkynes with Allyl Iodides: Synthesis of Skipped Dienes
作者:Anjia Liu、Dongmei Chi、Shufeng Chen
DOI:10.1021/acs.orglett.1c03073
日期:2021.11.5
A palladium-catalyzed cascade allylative dicarbofunctionalization of aryl phenol-tethered alkynes with allyl iodides is described. A series of polysubstituted spirocyclo-containing skipped dienes with an all-carbon tetrasubstituted alkene unit are synthesized through this convenient process. The cascade reaction proceeds selectively through dearomative C-allylation instead of O-allylation of aryl phenols