41744-32-5

Upstream product

• 131146-45-7 3-methoxy-4-(4'-methoxyphenyl)-6-(4''-methoxyphenyl)methyl-2H-pyran-2,5(6H)-dione 
• 131146-42-4 3-hydroxy-4-(4'-methoxyphenyl)-6-(4''-methoxyphenyl)methyl-2H-pyran-2,5(6H)-dione 
• 106942-19-2 4-methoxy-α<(trimethylsilyl)oxy>benzenepropanenitrile 
• 5703-26-4 4-Methoxyphenylacetaldehyde 
• 74026-69-0 3-hydroxy-1,4-bis-(4-methoxy-phenyl)-butan-2-one 
• 4693-91-8 4-methoxyphenyl-acetic chloride 
• 104554-99-6 Oxalsaeure-(ethyl)<3-(4-methoxyphenyl)-2-oxopropyl>ester 
• 104555-01-3 3-Hydroxy-4-(4-methoxyphenyl)-2H-pyran-2,5(6H)-dion 
• 20772-13-8 1-bromo-3-(4-methoxyphenyl)-2-propanone 
• 104555-03-5 4',4-Di-O-methylgrevillin A 
• 104555-16-0 3-methoxy-4-(4'-methoxyphenyl)-6-(4''-methoxyphenyl)methylene-2H-pyran-2,5(6H)-dione 

Downstream Products

• 104555-20-6 Tri-O-acetylgrevillin A 

Relevant academic research and scientific papers

Pigments of Fungi. XV An Efficient, Unambiguous Route to Unsymmetrically Substituted Dibenzyl Acyloins and their Use in the Synthesis of Fungus Pigments of the Pulvinone and Grevillin Types

Dibenzyl acyloins including those bearing unsymetrically disposed aryl residues are assembled in high yield by reaction between the O-trimethylsilyl ethers of arylacetaldehyde cyanohydrins and benzyl Grignard reagents.These acyloins are deprotonated with

Fungal Pigments, 49. - Synthesis of Grevillins and Related 2H-Pyran-2,5(6H)-diones

A convergent synthesis of grevillins 1 starts from diazoesters 6 which are converted into 3-aryl-2-oxopropyl ethyl oxalates 4 via bromoketones 7.Cyclization of 4 leads to pyrandiones 2 which are condensed with aromatic aldehydes to yield 4-aryl-2-benzylid