29712-66-1

Basic information

• Product Name: 18-methyl-4,12,17-trioxo-3,5,8,11,13,16-hexaoxanonadec-18-en-1-yl 2-methylprop-2-enoate
• CAS NO: 29712-66-1
• Molecular Formula: C₁₈H₂₆O₁₁
• Molecular Weight: 418.3924
• Mol File: 29712-66-1.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 500.2°C at 760 mmHg
• Flash Point: 215.7°C
• Density: 1.2g/cm³
• Vapor Pressure: 3.88E-10mmHg at 25°C
• Refractive Index: 1.468
• CAS DataBase Reference: 18-methyl-4,12,17-trioxo-3,5,8,11,13,16-hexaoxanonadec-18-en-1-yl 2-methylprop-2-enoate(CAS DataBase Reference)
• NIST Chemistry Reference: 18-methyl-4,12,17-trioxo-3,5,8,11,13,16-hexaoxanonadec-18-en-1-yl 2-methylprop-2-enoate(29712-66-1)
• EPA Substance Registry System: 18-methyl-4,12,17-trioxo-3,5,8,11,13,16-hexaoxanonadec-18-en-1-yl 2-methylprop-2-enoate(29712-66-1)

Safety Data

• Hazardous Substances Data: 29712-66-1(Hazardous Substances Data)

Upstream product

• 868-77-9 2-methyl-2-propenoic acid 2-hydroxyethyl ester 
• 106-75-2 diethylene glycol bischloroformate 

Relevant articles and documents

Specific ortho effect in acylation of o-carboranediol

o-Carboranediol is acylated fast and in a high yield with glycol chloroformates under conditions of the Schotten-Baumann reaction catalyzed by tertiary amines (general basic catalysis) through formation of a complex of the diol with the triethylamne catalyst, detected by 1H NMR spectroscopy. For m-carboranediol the nucleophilic mechanism of catalysis is preferable, through a complex of pyridine catalyst with chloroformate. The complex of the catalyst with o-carboranediol involves both OH groups of the diol (1 : 1 complex), owing to their ortho arrangement, that is, a specific ortho effect takes place. The ortho effect is responsible for different reactivities of two HO groups of o-carboranediol: Under mild conditions, only one OH group enters the reaction. The "phenolic" character of o-carboranediol is manifested in the acid-catalyzed esterification with carboxylic acids or anhydrides.