Direct, redox-neutral prenylation and geranylation of secondary carbinol C-H bonds: C4-regioselectivity in ruthenium-catalyzed C-C couplings of dienes to α-hydroxy esters.
Direct, redox-neutral prenylation and geranylation of secondary carbinol C-H bonds: C4-regioselectivity in ruthenium-catalyzed C-C couplings of dienes to α-hydroxy esters.
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DOI:
10.1021/ja3075049
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发表时间:
2012-09-26
影响因子:
15
通讯作者:
Krische, Michael J.
中科院分区:
文献类型:
--
作者:
Leung, Joyce C.;Geary, Laina M.;Chen, Te-Yu;Zbieg, Jason R.;Krische, Michael J.
The ruthenium catalyst generated in situ from Ru3(CO)12 and tricyclohexylphosphine, PCy3, promotes the redox-neutral C-C coupling of aryl substituted α-hydroxy esters to isoprene and myrcene at the diene C4-position, resulting in direct carbinol C-H prenylation and geranylation, respectively. This process enables direct conversion of secondary to tertiary alcohols in the absence of stoichiometric byproducts or premetallated reagents, and is the first example of C4-regioselectivity in catalytic C-C couplings of 2-substituted dienes to carbonyl partners. Mechanistic studies corroborate a catalytic cycle involving diene-carbonyl oxidative coupling.
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影响因子:
5.2
作者:
Cho HY;Yu Z;Morken JP
通讯作者:
Morken JP
DOI:
10.1021/jo201321k
发表时间:
2011-11-04
期刊:
The Journal of organic chemistry
影响因子:
--
作者:
Hong K;Morken JP
通讯作者:
Morken JP
影响因子:
15
作者:
Ely RJ;Morken JP
通讯作者:
Morken JP
影响因子:
16.6
作者:
Hawkins, JM;Watson, TJN
通讯作者:
Watson, TJN
影响因子:
2.6
作者:
Ballard, CE;Morken, JP
通讯作者:
Morken, JP