38352-81-7

Basic information

• Product Name: 5-Hexyn-2-one, 3-(2-propynyl)- (7CI,9CI)
• Synonyms: 5-Hexyn-2-one, 3-(2-propynyl)- (7CI,9CI)
• CAS NO: 38352-81-7
• Molecular Formula: C9H10O
• Molecular Weight: 134.1751
• Product Categories: ACETYLGROUP
• Mol File: 38352-81-7.mol
• Article Data: 3

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 5-Hexyn-2-one, 3-(2-propynyl)- (7CI,9CI)(CAS DataBase Reference)
• NIST Chemistry Reference: 5-Hexyn-2-one, 3-(2-propynyl)- (7CI,9CI)(38352-81-7)
• EPA Substance Registry System: 5-Hexyn-2-one, 3-(2-propynyl)- (7CI,9CI)(38352-81-7)

Safety Data

• Hazardous Substances Data: 38352-81-7(Hazardous Substances Data)

Upstream product

• 106-96-7 propargyl bromide 
• 123-54-6 acetylacetone 
• 95314-78-6 methyl 2-acetyl-2-(prop-2-yn-1-yl)pent-4-ynoate 
• 38352-75-9 ethyl 2-acetyl-2-(prop-2-ynyl)pent-4-ynoate 
• 38352-73-7 3,3-di-prop-2-ynyl-pentane-2,4-dione 

Downstream Products

• 1323771-03-4 C₁₉H₁₈O₂ 
• 1323770-39-3 C₁₉H₁₈O₂ 

Relevant articles and documents

Base-induced cyclization of derivatives of bispropargylated acetic acid to m -toluic acid

A base-induced cyclization reaction of 1,1-bispropargyls has been examined. Alkali treatment of 2,2-bispropynyl acetic acid derivatives in aqueous ethanol mostly provided 3-methylbenzoic acid. Investigations on substituent effects indicate the requirement of an electron-withdrawing group causing CH acidity and the center of the dipropargylic structure. Besides, an intramolecular hydrogen transfer causing the rearrangement of one terminal alkyne into a corresponding allene appears to be essential. Despite an unsatisfying conversion yield of below 40%, the reaction is interesting due to the mild cyclization conditions.

The preparation of furan and pyran derivatives form alpha-alkynyl-beta-dicarbonyl compounds. 1. On the furan and pyran series.

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