128788-02-3

Basic information

• Product Name: 3-Prop-2-ynyl-4-prop-2-ynyloxy-chromen-2-one
• CAS NO: 128788-02-3
• Molecular Weight: 238.243
• Mol File: 128788-02-3.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 3-Prop-2-ynyl-4-prop-2-ynyloxy-chromen-2-one(CAS DataBase Reference)
• NIST Chemistry Reference: 3-Prop-2-ynyl-4-prop-2-ynyloxy-chromen-2-one(128788-02-3)
• EPA Substance Registry System: 3-Prop-2-ynyl-4-prop-2-ynyloxy-chromen-2-one(128788-02-3)

Safety Data

• Hazardous Substances Data: 128788-02-3(Hazardous Substances Data)

Upstream product

• 1076-38-6 4-hydroxy[1]benzopyran-2-one 
• 106-96-7 propargyl bromide 

Relevant articles and documents

Phase-transfer catalysed alkylation of 4-hydroxycoumarin - Synthesis of α,α-disubstituted o-hydroxyacetophenones

Phase-transfer catalysed alkalyation of 4-hydroxycoumarin (1) with active halides give O-alkylated products, 2 (20-60%), C, O-dialkylated products, 3 (15-20%) and α,α-disubstituted-o-hydroxyacetophenones, 5 (20-75%). Only in one case C,C-dialkylated product, 4 (35%) has been obtained.