Application of the BHQ benzannulation reaction to the synthesis of benzo-fused coumarins
摘要:
A new approach to the synthesis of the 6H-benzo[d]naphthal[,2-b]pyran-6-one ring system present in the gilvocarcin family of antibiotics is described. The key feature of this approach is the application of a new benzannulation strategy (the 'BHQ Reaction') whereby readily available ortho-allylaryl trichloroacetates are transformed into naphthalene derivatives via a cascade of reactions involving an initial ATRC reaction followed by the extrusion of CO2. (C) 2009 Elsevier Ltd. All rights reserved.
Application of the BHQ benzannulation reaction to the synthesis of benzo-fused coumarins
摘要:
A new approach to the synthesis of the 6H-benzo[d]naphthal[,2-b]pyran-6-one ring system present in the gilvocarcin family of antibiotics is described. The key feature of this approach is the application of a new benzannulation strategy (the 'BHQ Reaction') whereby readily available ortho-allylaryl trichloroacetates are transformed into naphthalene derivatives via a cascade of reactions involving an initial ATRC reaction followed by the extrusion of CO2. (C) 2009 Elsevier Ltd. All rights reserved.
Application of the BHQ benzannulation reaction to the synthesis of benzo-fused coumarins
作者:James A. Bull、Cristina Luján、Michael G. Hutchings、Peter Quayle
DOI:10.1016/j.tetlet.2009.03.077
日期:2009.7
A new approach to the synthesis of the 6H-benzo[d]naphthal[,2-b]pyran-6-one ring system present in the gilvocarcin family of antibiotics is described. The key feature of this approach is the application of a new benzannulation strategy (the 'BHQ Reaction') whereby readily available ortho-allylaryl trichloroacetates are transformed into naphthalene derivatives via a cascade of reactions involving an initial ATRC reaction followed by the extrusion of CO2. (C) 2009 Elsevier Ltd. All rights reserved.