31501-55-0

Basic information

• Product Name: (2E)-1-(5-Hydroxy-2,2-dimethyl-2H-1-benzopyran-6-yl)-3-phenyl-2-propen-1-one
• Synonyms: (2E)-1-(5-Hydroxy-2,2-dimethyl-2H-1-benzopyran-6-yl)-3-phenyl-2-propen-1-one;Lonchocarpin
• CAS NO: 31501-55-0
• Molecular Formula: C₂₀H₁₈O₃
• Molecular Weight: 306.36
• Mol File: 31501-55-0.mol
• Article Data: 6

Chemical Properties

• Appearance: /
• CAS DataBase Reference: (2E)-1-(5-Hydroxy-2,2-dimethyl-2H-1-benzopyran-6-yl)-3-phenyl-2-propen-1-one(CAS DataBase Reference)
• NIST Chemistry Reference: (2E)-1-(5-Hydroxy-2,2-dimethyl-2H-1-benzopyran-6-yl)-3-phenyl-2-propen-1-one(31501-55-0)
• EPA Substance Registry System: (2E)-1-(5-Hydroxy-2,2-dimethyl-2H-1-benzopyran-6-yl)-3-phenyl-2-propen-1-one(31501-55-0)

Safety Data

• Hazardous Substances Data: 31501-55-0(Hazardous Substances Data)

Upstream product

• 24672-84-2 6-acetyl-5-hydroxy-2,2-dimethylchromene 
• 100-52-7 benzaldehyde 
• 19825-40-2 2,4-Dihydroxy-3-C-prenylacetophenone 
• 885118-28-5 5-hydroxy-2,2-dimethyl-2H-chromene-6-carboxylic acid ethyl ester 
• 525-25-7 β-tubaic acid 
• 89-84-9 2',4'-dihydroxy-4-acetophenone 
• 115-19-5 2-methyl-but-3-yn-2-ol 
• 100-42-5 styrene 
• 54287-99-9 5-hydroxy-2,2-dimethyl-2H-chromene-6-carbaldehyde 
• 107-86-8 3,3-dimethyl acrylaldehyde 
• 95-01-2 2,4-Dihydroxybenzaldehyde 
• 245759-83-5 2-methoxymethoxy-6',6'-dimethylpyrano[2',3':4,3]acetophenone 

Downstream Products

• 55716-91-1 1-(5-hydroxy-2,2-dimethyl-3,4-dihydro-2H-chromen-6-yl)-3-phenylpropan-1-one 

Relevant articles and documents

From Carbamate to Chalcone: Consecutive Anionic Fries Rearrangement, Anionic Si → C Alkyl Rearrangement, and Claisen-Schmidt Condensation

A highly efficient one-pot procedure was developed for the synthesis of various 2′-hydroxychalcones from phenyl diethylcarbamate, featuring consecutive Snieckus-Fries rearrangement, anionic Si a?' C alkyl rearrangement, and Claisen-Schmidt condensation in a single operation. The applicability of this protocol was demonstrated by the highly efficient synthesis of the anti-inflammatory natural product lonchocarpin. The mechanism insight is also provided.

Rhodium(III)-catalyzed dehydrogenative Heck reaction of salicylaldehydes

Your CHOice! An efficient RhIII-catalyzed dehydrogenative Heck reaction (DHR) of salicylaldehydes with different classes of olefins extends the oxidative Heck reaction to aldehyde C-H bonds. Several structural motifs similar to natural products and bioactive molecules such as aurones, flavones, 2'-hydroxychalcones, and flavanones could be efficiently produced. Initial mechanistic studies give insight into the reaction mechanism. Copyright

Selenium-based solid-phase synthesis of benzopyrans I: Applications to combinatorial synthesis of natural products

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