[EN] PROCESSES FOR THE PREPARATION OF HETEROCYCLIC SCAFFOLDS FROM ALPHA ENAMINONES<br/>[FR] PROCÉDÉS POUR LA PRÉPARATION D'ÉCHAFAUDAGES HÉTÉROCYCLIQUES À PARTIR D'ALPHA ÉNAMINONES
申请人:YISSUM RES DEV CO OF HEBREW UNIV JERUSALEM LTD
公开号:WO2018173058A1
公开(公告)日:2018-09-27
The present invention provides processes for the preparation of diverse heterocyclic scaffolds from alpha-enaminone building bloc of formula (I).
本发明提供了从式(I)的α-烯酰胺建筑基块制备多样性杂环支架的方法。
Processes for the preparation of heterocyclic scaffolds from alpha enaminones
申请人:Yissum Research Development Company, of The Hebrew University of Jerusalem Ltd.
公开号:US11091438B2
公开(公告)日:2021-08-17
The present invention provides processes for the preparation of diverse heterocyclic scaffolds from alpha-enaminone building bloc of formula (I).
本发明提供了从式(I)的α-烯胺酮结构单元制备多种杂环支架的工艺。
Multifaceted α-Enaminone: Adaptable Building Block for Synthesis of Heterocyclic Scaffolds Through Conceptually Distinct 1,2-, 1,3-, 1,4-, and C–O Bond Forming Annulations
The new reactivity of alpha,beta-unsaturated enaminones driven by their "dual electronic attitude" is reported. We introduce unexplored, alpha-enaminone synthones and reveal the unusual functionalities of these building blocks. The feasibility of this new concept is demonstrated in the direct functionalization of enaminone precursors, such as alkylation; 1,2- 1,3-, or 1,4-addition; and C-O bond formation. The general and potential applicability is presented through the collective synthesis of several important classes of heterocycles via controlled cyclizations of easily accessible common precursors. The rapid composition of novel key alpha-enaminone synthones yields an assembly of oxazines, azaspirones, quinolinones, and quinolinols in a regio- and chemoselective fashion.
PROCESSES FOR THE PREPARATION OF HETEROCYCLIC SCAFFOLDS FROM ALPHA ENAMINONES
申请人:Yissum Research Development Company of the Hebrew
University of Jerusalem Ltd.