33018-54-1

Upstream product

• 108-46-3 recorcinol 
• 487-49-0 1-(2,4-dihydroxyphenyl)-2-(4-methoxyphenyl)ethanone 
• 15485-73-1 ethyl 7-hydroxy-3-(4-methoxyphenyl)-4-oxo-4H-chromene-2-carboxylate 
• 74-88-4 methyl iodide 
• 104-01-8 4-Methoxyphenylacetic acid 
• 41046-70-2 2-iodo-5-methoxyphenol 
• 1459129-12-4 ethyl 2-(5-methoxy-2-(2-(4-methoxyphenyl)-2-oxoacetyl)phenoxy)acetate 
• 1459128-86-9 ethyl 2-(2-iodo-5-methoxyphenoxy)acetate 
• 1459128-94-9 ethyl 2-(5-methoxy-2-((4-methoxyphenyl)ethynyl)phenoxy)acetate 

Relevant academic research and scientific papers

A Concise Approach to Oxo-Dehydrorotenoid by Direct Lactonization and the Total Syntheses of Stemonone, Rotenonone, 6-Oxo-dehydroelliptone, and 6-Oxo-6a,12a-dehydrodeguelin

An approach to construct the oxo-dehydrorotenoids via direct lactonization of isoflavone-2-carboxylic acids is reported. The present reaction proceeds smoothly with good substrate scope and an operationally simple protocol. The application of this method

DBU-mediated regioselective intramolecular cyclization/dehydration of ortho diketo phenoxyethers: A synthesis of 2,3-substituted γ-benzopyranones

The regioselective cyclization/dehydration sequence of ortho diketo phenoxyethers induced by DBU has been explored. The results demonstrated a high degree of selectivity with preference for 6-exo-trig cyclization leading to the formation of γ-benzopyranone derivatives in good yield.