145917-18-6

Basic information

• Product Name: Toluene-4-sulfonic acid 3-furan-2-yl-3-methyl-butyl ester
• Synonyms: Toluene-4-sulfonic acid 3-furan-2-yl-3-methyl-butyl ester
• CAS NO: 145917-18-6
• Molecular Weight: 308.398
• Mol File: 145917-18-6.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Toluene-4-sulfonic acid 3-furan-2-yl-3-methyl-butyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: Toluene-4-sulfonic acid 3-furan-2-yl-3-methyl-butyl ester(145917-18-6)
• EPA Substance Registry System: Toluene-4-sulfonic acid 3-furan-2-yl-3-methyl-butyl ester(145917-18-6)

Safety Data

• Hazardous Substances Data: 145917-18-6(Hazardous Substances Data)

Upstream product

• 86863-03-8 methyl 3-(2-furanyl)-3-methylbutanoate 
• 38576-60-2 senecioyl cyanide 
• 541-47-9 3-Methylbutenoic acid 
• 3350-78-5 3,3-Dimethylacryloyl chloride 
• 86863-08-3 3-(2-furyl)-3-methyl-1-butanol 
• 98-59-9 p-toluenesulfonyl chloride 

Relevant articles and documents

The effect of Lewis acids on the intramolecular Diels-Alder reaction of the furan diene

A general method is described for effecting the intramolecular Diels-Alder reaction of the furan diene in which the side arm connecting the diene to the dienophile contains four carbon atoms.The use of 1.1 equivalents of methylaluminum dichloride at -78 deg C for 2-8 h shifts the Diels-Alder equilibrium towards the products and provides the oxatricyclo adducts in good to excellent yield.Catalytic quantities of methylaluminum dichloride (10 molpercent) provided a higher quantity of adduct than excess Lewis acid when the enone was substituted with alkyl groups.The scope was extended to include a precursor containing a five carbon atom side arm, and two examples containing acetylenic dienophiles that were activated by a carbonyl moiety on the side arm.Precursors having a four carbon atom side arm provided only oxatricyclo adducts having the side arm syn to the oxygen bridge.The assignment of the stereochemistry of the oxatricyclo adducts is discussed in detail.