67545-73-7

Basic information

• Product Name: 3-Furancarboxylic acid, 5-(2,2-dichloroethenyl)-4,5-dihydro-2,4,4-trimethyl-, methyl ester
• CAS NO: 67545-73-7
• Molecular Formula: C11H14Cl2O3
• Molecular Weight: 265.136
• Mol File: 67545-73-7.mol

Chemical Properties

• CAS DataBase Reference: 3-Furancarboxylic acid, 5-(2,2-dichloroethenyl)-4,5-dihydro-2,4,4-trimethyl-, methyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: 3-Furancarboxylic acid, 5-(2,2-dichloroethenyl)-4,5-dihydro-2,4,4-trimethyl-, methyl ester(67545-73-7)
• EPA Substance Registry System: 3-Furancarboxylic acid, 5-(2,2-dichloroethenyl)-4,5-dihydro-2,4,4-trimethyl-, methyl ester(67545-73-7)

Safety Data

• Hazardous Substances Data: 67545-73-7(Hazardous Substances Data)

Upstream product

• 72800-48-7 1,1,1-trichloro-4-methyl-3-penten-2-ol 
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Relevant articles and documents

2,5,5-Trimethyl-3-carbalkoxy-4(β,β-dihalovinyl)-4,5-dihydrofurans

A method of preparing certain dihalogen vinyl cyclopropane carboxylic acid esters of the formula STR1 wherein R is an alkyl moiety and X is chlorine or bromine by exposing a dihalogen vinyl dihydrofuran of the formula STR2 to light, e.g., ultraviolet light. Also disclosed is a method for preparing such 2,4,4-trimethyl-3-carbalkoxy-5-(β,β-dihalogenvinyl)-4,5-dihydrofurans by reaction of a β-alkoxycrotonic acid ester or 3,3-bisalkoxybutyric acid ester with a 1,1,1-trihalogen-4-methyl-3- or -4-pentene-2-ol in the presence of an acid catalyst. Also disclosed is a method of converting such 2,4,4-trimethyl-3-carbalkoxy-5-(β,β-dihalogenvinyl)-4,5-dihydrofuran by thermal rearrangement into 2,5,5-trimethyl-3-carbalkoxy-4-(β,β-dihalogenvinyl)-4,5-dihydrofurans. Such 2,4,4- and 2,5,5-trimethyl-3-carbalkoxy-5-(β,β-dihalogenvinyl)-4,5-dihydrofurans are new.