77670-51-0

Basic information

• Product Name: Benzeneacetic acid, a-(3-phenyl-2-propynylidene)-, (Z)-
• CAS NO: 77670-51-0
• Molecular Formula: C17H12O2
• Molecular Weight: 248.281
• Mol File: 77670-51-0.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Benzeneacetic acid, a-(3-phenyl-2-propynylidene)-, (Z)-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzeneacetic acid, a-(3-phenyl-2-propynylidene)-, (Z)-(77670-51-0)
• EPA Substance Registry System: Benzeneacetic acid, a-(3-phenyl-2-propynylidene)-, (Z)-(77670-51-0)

Safety Data

• Hazardous Substances Data: 77670-51-0(Hazardous Substances Data)

Upstream product

• 2579-22-8 Phenylpropargyl aldehyde 
• 103-82-2 phenylacetic acid 

Relevant articles and documents

Cyclisation of Acetylenecarboxylic Acid. Synthesis of γ-Methylenebutyrolactones

Various γ-exo-methylenebutyrolactones have been synthesized in excellent yield by the cyclisation of acetylenecarboxylic acids in the presence of a catalytic amount of mercury(II) oxide.Cyclisation of terminal acetylene compounds proceeded regioselectively to give γ-exo-methylenebutyrolactones as the sole product.Disubstituted acetylenes also gave the (Z)-configurational enol lactone, but small amounts of an (E)-isomer of a γ-exo-enol lactone and a δ-lactone (α-pyrone) were also formed.Spectral properties and stereochemistry of the exo-enol lactones are also discussed.