AI Article Synopsis

  • The text discusses the exploration of reactions using various C1 synthons for a chemical process called homologation, focusing on fewer instances where a single C1 synthon is used twice.
  • It presents a new method for synthesizing 2-chromenes using a copper(II) catalyst, combining 2-naphthols, 1,3-diketones, and dimethylethanolamine (DMEA) as a versatile building block.
  • The resulting 2-chromenes show moderate to good yields and this research notably highlights DMEA's role as the first reported dual C1 synthon in such reactions.

Article Abstract

Reactions with diverse C1 synthons to realize homologation were well explored. However, homologations occurring twice with one C1 synthon in a reaction were less reported. We disclose herein a Cu(II)-catalyzed novel and efficient synthesis of 2-chromenes from 2-naphthols, 1,3-diketones, and ,-dimethylethanolamine (DMEA) as a dual carbon synthon. Various 2-chromenes with different functional groups are constructed in moderate to good yields. This is the first report that DMEA acts as a dual C1 synthon.

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http://dx.doi.org/10.1021/acs.joc.3c01849DOI Listing

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