Enantioselective Synthesis of Isoxazoline N-Oxides via Pd-Catalyzed Asymmetric Allylic Cycloaddition of Nitro-Containing Allylic Carbonates

被引:30
作者
Zhao, Can [1 ,2 ]
Shah, Babar Hussain [1 ,2 ]
Khan, Ijaz [1 ,2 ]
Kan, Yuhe [3 ]
Zhang, Yong Jian [1 ,2 ]
机构
[1] Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, 800 Dongchuan Rd, Shanghai 200240, Peoples R China
[2] Shanghai Jiao Tong Univ, Shanghai Key Lab Elect Insulat & Thermal Aging, 800 Dongchuan Rd, Shanghai 200240, Peoples R China
[3] Huaiyin Normal Univ, Sch Chem & Chem Engn, Jiangsu Key Lab Chem Low Dimens Mat, Huaian 223300, Peoples R China
关键词
DECARBOXYLATIVE CYCLOADDITION; VINYLETHYLENE CARBONATES; CONJUGATE ADDITION; CONSTRUCTION; ALKYLATION; TANDEM; 1,4-DIACETOXYLATION; CYCLIZATION; ALLYLATION; COMPLEXES;
D O I
10.1021/acs.orglett.9b03443
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A useful method for the enantioselective preparation of isoxazoline N-oxides via Pd-catalyzed asymmetric allylic cycloaddition of nitro-containing allylic carbonates has been developed. By using palladium complex in situ generated from Pd-2(dba)(3)center dot CHCl3 and phosphoramidite L2 as a catalyst under mild conditions, the transformation afforded vinylated isoxazoline N-oxides in high yields with acceptably high enantioselectivities.
引用
收藏
页码:9045 / 9049
页数:5
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