C-C activation;
carbenes;
diazo compounds;
rhodium;
small ring systems;
INTRAMOLECULAR 3+2 CYCLOADDITION;
CATALYZED 5+2+1 CYCLOADDITION;
NATURAL-PRODUCT SYNTHESIS;
DIELS-ALDER REACTION;
ENE-VINYLCYCLOPROPANES;
METAL CARBENE;
ALKYNES;
TOSYLHYDRAZONES;
INSERTION;
1ST;
D O I:
10.1002/anie.201609642
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
The rhodium(I)-catalyzed C-C bond activation reaction of siloxyvinylcyclopropanes with diazoesters demonstrates a novel mode of C-C bond cleavage of siloxyvinvylcyclopanes. The alkene products were obtained as single E-configured isomers in good yields. A sigma,(3)-allyl rhodium complex, which has been previously proposed as the key intermediate in rhodium(I)-catalyzed cycloaddition of vinylcyclopropanes, has been isolated and characterized by X-ray crystallography.
机构:
Shandong Agr Univ, Coll Chem & Mat Sci, Tai An 271018, Shandong, Peoples R ChinaShandong Agr Univ, Coll Chem & Mat Sci, Tai An 271018, Shandong, Peoples R China
Meng, Qingxi
Wang, Fen
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机构:
Taishan Univ, Coll Chem & Chem Engn, Tai An 271021, Shandong, Peoples R ChinaShandong Agr Univ, Coll Chem & Mat Sci, Tai An 271018, Shandong, Peoples R China
Wang, Fen
Qian, Ping
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机构:
Shandong Agr Univ, Coll Chem & Mat Sci, Tai An 271018, Shandong, Peoples R ChinaShandong Agr Univ, Coll Chem & Mat Sci, Tai An 271018, Shandong, Peoples R China