137919-34-7

Basic information

• Product Name: Pentanoic acid, 5,5-dimethoxy-2-[(4-nitrobenzoyl)oxy]-, methyl ester
• CAS NO: 137919-34-7
• Molecular Formula: C15H19NO8
• Molecular Weight: 341.318
• Mol File: 137919-34-7.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Pentanoic acid, 5,5-dimethoxy-2-[(4-nitrobenzoyl)oxy]-, methyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: Pentanoic acid, 5,5-dimethoxy-2-[(4-nitrobenzoyl)oxy]-, methyl ester(137919-34-7)
• EPA Substance Registry System: Pentanoic acid, 5,5-dimethoxy-2-[(4-nitrobenzoyl)oxy]-, methyl ester(137919-34-7)

Safety Data

• Hazardous Substances Data: 137919-34-7(Hazardous Substances Data)

Upstream product

• 137919-32-5 methyl 5,5-dimethoxy-2-(acetyloxy)pentanoate 
• 137943-29-4 6,6-dichloro-4-(acetyloxy)-5-hexenal 
• 137919-38-1 1,1-dichloro-3-(acetyloxy)-1,6-heptadiene 
• 137919-37-0 1,1-dichloro-1,6-heptadien-3-ol 
• 23068-91-9 methyl 5,5-dimethoxyvalerate 
• 67-56-1 methanol 
• 21985-86-4 cyclopent-2-en-1-yl 4-nitrobenzoate 
• 77-76-9 2,2-dimethoxy-propane 
• 122-04-3 4-nitro-benzoyl chloride 
• 137919-35-8 methyl 5,5-dimethoxy-2-hydroxypentanoate 

Relevant articles and documents

The Influence of Remote Heteroatom Substituents on the Stereoselectivity of Cyclopentene Ozonolysis

The stereoselectivity for ozonide formation from cyclopentenes with allylic heteroatom substituents has been examined.Silyl ethers give high selectivity in favor of the exo-substituted ozonide, while esters of 2-cyclopentenol form ozonide mixtures with little stereoselection.Trapping experiments establish that fragmentation of the primary ozonides is highly regioselective to give only one of the isomeric ω-oxo carbonyl oxide intermediates and that the variation in final ozonide stereochemistry results from differing interactions between the remote substituent groupsand the carbonyl oxide system during cyclization of this intermediate.The effect of substituent and solvent on ozonide stereochemistry suggests a dominant role for electrostatic repulsion between carbonyl oxide and the heteroatom substituent during intramolecular cycloaddition.A chair-like transition state is proposed for this process and is in accord with the increase in exo selectivity for derivatives of 2-methyl-2-cyclopentenol.