19498-74-9

Basic information

• Product Name: 3-(3,4-dichlorophenyl)-2-Propynoic acid
• Synonyms: 3-(3,4-dichlorophenyl)-2-Propynoic acid;3-(3,4-dichlorophenyl)prop-2-ynoic acid;(3,4-Dichloro-phenyl)-propynoic acid
• CAS NO: 19498-74-9
• Molecular Formula: C₉H₄Cl₂O₂
• Molecular Weight: 215.03286
• Mol File: 19498-74-9.mol
• Article Data: 4

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 3-(3,4-dichlorophenyl)-2-Propynoic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 3-(3,4-dichlorophenyl)-2-Propynoic acid(19498-74-9)
• EPA Substance Registry System: 3-(3,4-dichlorophenyl)-2-Propynoic acid(19498-74-9)

Safety Data

• Hazardous Substances Data: 19498-74-9(Hazardous Substances Data)

Upstream product

• 124-38-9 carbon dioxide 
• 556112-20-0 3,4-dichlorophenylacetylene 
• 20555-91-3 3,4-dichloroiodobenzene 
• 471-25-0 Propiolic acid 

Downstream Products

• 1075623-28-7 N,N'-pentane-1,5-diylbis[3-(3,4-dichlorophenyl)prop-2-ynamide] 
• 20595-52-2 (2Z)-3-(3,4-dichlorophenyl)acrylic acid 

Relevant articles and documents

A Construction of α-Alkenyl Lactones via Reduction Radical Cascade Reaction of Allyl Alcohols and Acetylenic Acids

An iron-catalyzed cascade reaction of radical reduction of allyl alcohols and acetylenic acids to construct polysubstituted α-alkenyl lactones has been developed. In this paper, various allyl alcohols can form allyl ester intermediates and are further transformed into alkyl radicals, which form products through intramolecular reflex-Michael addition. In addition, this method can be used to prepare spirocycloalkenyl lactones. Interestingly, this protocol can be used to synthesize the skeleton structure of natural products. Moreover, the product can be further transformed into a β-methylene tetrahydrofuran and tetrahydrofuran diene.

Copper-Catalyzed, Stereoselective Bis-trifluoromethylthiolation of Propiolic Acid Derivatives with AgSCF3

A copper-catalyzed chemo- and stereoselective oxidative bis-trifluoromethylthiolation of propiolic acid derivatives was achieved by using carboxylic acid as the activating group and formic acid as a cosolvent. The reaction of propiolic acid derivatives and AgSCF3 in the presence of (NH4)2S2O8 and catalytic Cu(OAc)2 in MeCN/HCO2H afforded bis-trifluoromethylthiolated acrylic acids in moderate to excellent yields with E selectivity. Further derivatization of the resultant products gave a series of polysubstituted SCF3-containing alkenes.