110087-44-0

Basic information

• Product Name: Benzeneacetic acid, a-[3-hydroxy-4-(4-hydroxyphenyl)-5-oxo-2(5H)-furanylidene]-, (E)-
• CAS NO: 110087-44-0
• Molecular Formula: C18H12O6
• Molecular Weight: 324.29
• Mol File: 110087-44-0.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: Benzeneacetic acid, a-[3-hydroxy-4-(4-hydroxyphenyl)-5-oxo-2(5H)-furanylidene]-, (E)-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzeneacetic acid, a-[3-hydroxy-4-(4-hydroxyphenyl)-5-oxo-2(5H)-furanylidene]-, (E)-(110087-44-0)
• EPA Substance Registry System: Benzeneacetic acid, a-[3-hydroxy-4-(4-hydroxyphenyl)-5-oxo-2(5H)-furanylidene]-, (E)-(110087-44-0)

Safety Data

• Hazardous Substances Data: 110087-44-0(Hazardous Substances Data)

Upstream product

• 137532-15-1 6-bromo-3-methoxy-6-(4-methoxybenzyl)-4-phenylpyran-2,5-dione 
• 137532-12-8 ethyl 1-(4-methoxyphenyl)-4-phenyl-3-oxobutan-2-yl oxalate 
• 137532-14-0 3-methoxy-6-(4-methoxybenzyl)-4-phenylpyran-2,5-dione 
• 137532-16-2 3-Methoxy-6-[1-(4-methoxy-phenyl)-meth-(Z)-ylidene]-4-phenyl-pyran-2,5-dione 
• 114590-94-2 3-Hydroxy-6-[1-(4-methoxy-phenyl)-meth-(Z)-ylidene]-4-phenyl-pyran-2,5-dione 
• 137532-13-9 3-hydroxy-6-(4-methoxybenzyl)-4-phenylpyran-2,5-dione 
• 106942-13-6 3-hydroxy-4-(4'-methoxyphenyl)-1-phenylbutan-2-one 
• 106942-19-2 4-methoxy-α<(trimethylsilyl)oxy>benzenepropanenitrile 
• 481-64-1 (E)-4-hydroxy-5-(α-methoxycarbonylbenzylidene)-3-(4-methoxyphenyl)furan-2(5H)-one 
• 22736-30-7 (E)-4-methoxy-5-(α-methoxycarbonylbenzylidene)-3-(4-methoxyphenyl)furan-2(5H)-one 
• 22628-17-7 6-(4-methoxyphenyl)-3-phenylfuro<3,2-b>furan-2,5-dione 

Relevant articles and documents

Synthesis of Grevillins, Novel Pyrandione Pigments of Fungi. Biogenetic Interrelationships between Grevillins, Pulvinic Acids, Terphenylquinones and Xylerythrins

A synthesis of the grevillin group of pyrandione pigments, e.g. 3, 23 and 24 present in fungi is described.The synthesis, which is based on a biogenetic model, uses bis-benzylacyloins 9 and their corresponding oxalate derivatives as key intermediates (Scheme 3).Treatment of the grevillins 25a-c with sodium ethoxide in ethanol effects their quantitative isomerisation into the corresponding terphenylquinone pigments 4a-c.Perkin-type condensations between the terphenylquinones 4 and arylacetic acids in the presence of sodium acetate-acetic anhydride then produces the xylerythrin pigments 29a-e, whereas rearrangements of 4 in the presence of dimethyl sulphoxide leads to pulvinic acid derivative, e.g. 31, 32 and 5.These synthetic studies interrelate the biosynthetic origins of the pigment types 3, 4, 5 and 8 together with the related pulvinones 6 and furanone 7 fungal pigments.

New Syntheses of Pulvinic Acids via Reformatsky-type Reactions with Aryl methoxymaleic Anhydrides

The reaction of zinc enolates, viz (13), derived from arylacetates with 2-aryl-3-methoxymaleic anhydrides gives β-hydroxy ester intermediates viz(17) which can be dehydrated to Z- and E-isomers of permethylated pulvinic acids.Thus, the intermediate (17) d