Excited-State Palladium-Catalyzed 1,2-Spin-Center Shift Enables Selective C-2 Reduction, Deuteration, and Iodination of Carbohydrates.
Excited-State Palladium-Catalyzed 1,2-Spin-Center Shift Enables Selective C-2 Reduction, Deuteration, and Iodination of Carbohydrates.
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DOI:
10.1021/jacs.0c11209
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发表时间:
2021-02-03
影响因子:
15
通讯作者:
Ngai MY
中科院分区:
文献类型:
--
作者:
Zhao G;Yao W;Mauro JN;Ngai MY
Excited-state catalysis, a process that involves one or more excited catalytic species, has emerged as a powerful tool in organic synthesis because it allows access to the excited-state reaction landscape for the discovery of novel chemical reactivity. Herein, we report the first excited-state palladium-catalyzed 1,2-spin-center shift reaction that enables site-selective functionalization of carbohydrates. The strategy features mild reaction conditions with high levels of regio- and stereoselectivity that tolerate a wide range of functional groups and complex molecular architectures. Mechanistic studies suggest a radical mechanism involving the formation of hybrid palladium species that undergoes a 1,2-spin-center shift followed by the reduction, deuteration, and iodination to afford functionalized 2-deoxy sugars. The new reactivity will provide a general approach for the rapid generation of natural and unnatural carbohydrates.
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影响因子:
15
作者:
HILBORN, JW;PINCOCK, JA
通讯作者:
PINCOCK, JA
影响因子:
16.6
作者:
Cheng, Wan-Min;Shang, Rui;Fu, Yao
通讯作者:
Fu, Yao
影响因子:
16.6
作者:
Chen W;Zhang S;Deng Q;Xu H
通讯作者:
Xu H
影响因子:
12.9
作者:
Engl, Sebastian;Reiser, Oliver
通讯作者:
Reiser, Oliver
DOI:
10.1016/s0065-2318(07)61004-x
发表时间:
2008-01-01
期刊:
ADVANCES IN CARBOHYDRATE CHEMISTRY AND BIOCHEMISTRY, VOL 61
影响因子:
--
作者:
De Lederkremer, Rosa M.;Marino, Carla
通讯作者:
Marino, Carla