Palladium-Catalyzed Asymmetric Aminohydroxylation of 1,3-Dienes
Palladium-Catalyzed Asymmetric Aminohydroxylation of 1,3-Dienes
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钯催化 1,3-二烯的不对称氨基羟基化
DOI:
10.1002/anie.201712350
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Gong Liu-Zhu
中科院分区:
文献类型:
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作者:
Shen Hong-Cheng;Wu Yu-Feng;Zhang Ying;Fan Lian-Feng;Han Zhi-Yong;Gong Liu-Zhu
A PdII‐catalyzed asymmetric aminohydroxylation of 1,3‐dienes with N‐tosyl‐2‐aminophenols was developed by making use of a chiral pyridinebis(oxazoline) ligand. The highly regioselective reaction provides direct and efficient access to chiral 3,4‐dihydro‐2H‐1,4‐benzoxazines in high yield and enantioselectivity (up to 96:4 e.r.). The reaction employs readily available N‐tosyl‐2‐aminophenols as a unique aminohydroxylation reagent and is complementary to known asymmetric aminohydroxylation methods.