Dehydrative fragmentation of 5-hydroxyalkyl-1H-tetrazoles: a mild route to alkylidenecarbenes.
Dehydrative fragmentation of 5-hydroxyalkyl-1H-tetrazoles: a mild route to alkylidenecarbenes.
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DOI:
10.1021/ol300276p
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发表时间:
2012-03-16
期刊:
影响因子:
5.2
通讯作者:
Komenda, John P.
中科院分区:
文献类型:
--
作者:
Wardrop, Duncan J.;Komenda, John P.
The development of a mild, base-free method for the generation of alkylidenecarbenes is reported. Treatment of 5-hydroxyalkyl-1 H-tetrazoles with carbodiimides generates products arising from the 1,2-rearrangement or [1,5]-C-H bond insertion of a putative alkylidenecarbene. Formation of this divalent intermediate is proposed to occur by way of a tetraazafulvene, which undergoes extrusion of two moles of dinitrogen. Details of this methodology, its applicationtothesynthesisofcombretastatinA-4andanimprovedrouteto5-hydroxyalkyl-1 H-tetrazolesare described.
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影响因子:
15
作者:
Eisler, S;Tykwinski, RR
通讯作者:
Tykwinski, RR
影响因子:
5.2
作者:
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通讯作者:
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DOI:
10.1039/p19820001467
发表时间:
1982-01-01
期刊:
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1
影响因子:
--
作者:
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通讯作者:
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影响因子:
3.2
作者:
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通讯作者:
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影响因子:
3.6
作者:
Kamijo, S;Jin, T;Yamamoto, Y
通讯作者:
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