A novel synthesis of 2-(2-quinoxalino)-3,5-diarylfurans
摘要:
a short synthesis of 2-(2-quinoxalino)-3,5-diarylfurans, allowing the stepwise introduction of the aromatic rings, is designed and implemented utilizing the DDQ promoted cyclization of 4-(2-quinoxalino)-1,3-diarylbutanones as the key transformation. (C) 1998 Elsevier Science Ltd. All rights reserved.
A novel synthesis of 2-(2-quinoxalino)-3,5-diarylfurans
摘要:
a short synthesis of 2-(2-quinoxalino)-3,5-diarylfurans, allowing the stepwise introduction of the aromatic rings, is designed and implemented utilizing the DDQ promoted cyclization of 4-(2-quinoxalino)-1,3-diarylbutanones as the key transformation. (C) 1998 Elsevier Science Ltd. All rights reserved.
<i>N</i>
‐Heterocyclic Carbene Catalyzed [3+2] Cycloaddition of Enals with
<i>β,γ</i>
‐Unsaturated
<i>α</i>
‐Ketimino Esters for the Synthesis of Multisubstituted Cyclopentanone
A convenient strategy of N‐heterocycliccarbene catalyzed [3+2] cycloaddition of enals with β,γ‐unsaturated α‐ketimino esters is developed. This effective protocol features mild reaction conditions and broad substrate scope, which enables the rapid assembly of various benzoxazinone derived cyclopentanone scaffolds in good to high yields with excellent diastereoselectivities.
A novel synthesis of 2-(2-quinoxalino)-3,5-diarylfurans
作者:Kevin J Duffy、R.Curtius Haltiwanger、Yifang Huang、Arda Konialian-Beck、Juan I Luengo
DOI:10.1016/s0040-4039(98)01790-0
日期:1998.10
a short synthesis of 2-(2-quinoxalino)-3,5-diarylfurans, allowing the stepwise introduction of the aromatic rings, is designed and implemented utilizing the DDQ promoted cyclization of 4-(2-quinoxalino)-1,3-diarylbutanones as the key transformation. (C) 1998 Elsevier Science Ltd. All rights reserved.