DABCO‐Catalysed [3+2] Cyclization/Deformylation Cascade of
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‐Quinols with 3‐Formylchromones: Access to Benzopyrone‐Fused Tetracyclic Ring Systems
The construction of benzopyrone-fused hydrobenzofuranones via DABCO-catalyzed [3+2] cyclization/deformylationcascade of p-quinols with 3-formylchromones is described. The reaction works under mild reaction conditions to provide the desired products in 53–90% yields with complete diastereoselectivities. In addition, an enantioselective version with 81% ee is also realized in the presence of Takemoto's
Rhodium(III)-Catalyzed Redox-Neutral C–H Arylation via Rearomatization
作者:Xueyun Zhang、Fen Wang、Zisong Qi、Songjie Yu、Xingwei Li
DOI:10.1021/ol500186j
日期:2014.3.21
Rhodium(III)-catalyzed arylation of arenes bearing a chelating group has been realized via a redox-economy process using 4-hydroxycyclohexa-2,5-dienones as the arylating reagents, leading to the synthesis of 3-arylated phenols. This redox-neutral process proceeds via a C-H activation pathway with rearomatization being the driving force.
Oxidative De-aromatization ofpara-Alkyl Phenols intopara-Peroxyquinols andpara-Quinols Mediated by Oxone as a Source of Singlet Oxygen
作者:M. Carmen Carreño、Marcos González-López、Antonio Urbano
DOI:10.1002/anie.200504605
日期:2006.4.21
Biogenesis-like transformation of salidroside to rengyol and its related cyclohexyletanoids of
作者:Katsuya Endo、Kazuhiko Seya、Hiroshi Hikino
DOI:10.1016/s0040-4020(01)89229-2
日期:1989.1
ENDO, KATSUYA;SEYA, KAZUHIKO;HIKINO, HIROSHI, TETRAHEDRON, 45,(1989) N2, C. 3673-3682