An efficient catalytic asymmetric chlorocyclization of olefinic amides with 1,3-dichloro-5,5-dimethylhydantoin(DCDMH) using hydroquinidine 1,4-phthalazinediyl diether((DHQD)_2 PHAL) as organocatalyst has been de...An efficient catalytic asymmetric chlorocyclization of olefinic amides with 1,3-dichloro-5,5-dimethylhydantoin(DCDMH) using hydroquinidine 1,4-phthalazinediyl diether((DHQD)_2 PHAL) as organocatalyst has been developed. Series of chiral chloro substituted isobenzofuran-1(3 H)-imine derivatives were obtained in good yields(up to 85%) and enantioselectivities(up to 70% ee).展开更多
基金Supported by the Fundamental Research Funds for the Central Universities of China(2015306020201)
文摘An efficient catalytic asymmetric chlorocyclization of olefinic amides with 1,3-dichloro-5,5-dimethylhydantoin(DCDMH) using hydroquinidine 1,4-phthalazinediyl diether((DHQD)_2 PHAL) as organocatalyst has been developed. Series of chiral chloro substituted isobenzofuran-1(3 H)-imine derivatives were obtained in good yields(up to 85%) and enantioselectivities(up to 70% ee).