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Catalyst-Free [2,3]-Sigmatropic Rearrangement Reactions of Photochemically Generated Ammonium Ylides
被引:13
|作者:
Li, Fang
[1
]
He, Feifei
[1
]
Koenigs, Rene M.
[1
]
机构:
[1] Rhein Westfal TH Aachen, Inst Organ Chem, Landoltweg 1, D-52074 Aachen, Germany
来源:
SYNTHESIS-STUTTGART
|
2019年
/
51卷
/
23期
关键词:
photochemistry;
diazoalkanes;
carbenes;
amines;
ylides;
rearrangement;
RING-EXPANSION;
SIGMATROPIC REARRANGEMENT;
CARBENE INSERTION;
DIAZO-COMPOUNDS;
ALLYL;
EFFICIENT;
BOND;
TRANSFORMATIONS;
DIAZOMETHANE;
SUBSEQUENT;
D O I:
10.1055/s-0037-1610732
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
The rearrangement reaction of ammonium ylides furnishes valuable alpha,alpha-disubstituted amino esters. In this work, we describe the visible-light photolysis reaction of aryldiazoacetates in the presence of tertiary amines that react via a free ammonium ylide in a sigmatropic rearrangement reaction to provide amino esters in moderate to very good yields (33 examples, up to 97% yield).
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页码:4348 / 4358
页数:11
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