61777-25-1

Basic information

• Product Name: 2-Oxo-1-butyl-1-cyclopentanecarboxylic acid methyl ester
• Synonyms: 1-Butyl-2-oxocyclopentanecarboxylic acid methyl ester;2-Oxo-1-butyl-1-cyclopentanecarboxylic acid methyl ester
• CAS NO: 61777-25-1
• Molecular Formula: C11H18O3
• Molecular Weight: 198.2588
• Mol File: 61777-25-1.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 269.2°Cat760mmHg
• Flash Point: 112.5°C
• Appearance: /
• Density: 1.033g/cm³
• Vapor Pressure: 0.00735mmHg at 25°C
• Refractive Index: 1.46
• CAS DataBase Reference: 2-Oxo-1-butyl-1-cyclopentanecarboxylic acid methyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: 2-Oxo-1-butyl-1-cyclopentanecarboxylic acid methyl ester(61777-25-1)
• EPA Substance Registry System: 2-Oxo-1-butyl-1-cyclopentanecarboxylic acid methyl ester(61777-25-1)

Safety Data

• Hazardous Substances Data: 61777-25-1(Hazardous Substances Data)

Usage

InChI:InChI=1/C11H18O3/c1-3-4-7-11(10(13)14-2)8-5-6-9(11)12/h3-8H2,1-2H3

Upstream product

• 109-65-9 1-bromo-butane 
• 10472-24-9 methyl 2-oxocyclopentane-1-carboxylate 
• 89363-72-4 C₁₈H₂₃O₂S⁽¹⁺⁾*BF₄^(1-) 
• 61114-31-6 methyl 1-(4-bromobutyl)-2-oxocyclopentane-1-carboxylate 

Relevant articles and documents

Catalytic asymmetric intramolecular homologation of ketones with α-diazoesters: Synthesis of cyclic α-Aryl/Alkyl β-ketoesters

A catalytic asymmetric intramolecular homologation of simple ketones with α-diazoesters was firstly accomplished with a chiral N,N′-dioxide-Sc(OTf)3 complex. This method provides an efficient access to chiral cyclic α-aryl/alkyl β-ketoesters containing an all-carbon quaternary stereocenter. Under mild conditions, a variety of aryl- and alkyl-substituted ketone groups reacted with α-diazoester groups smoothly through an intramolecular addition/rearrangement process, producing the β-ketoesters in high yield and enantiomeric excess.

Arylation of Dialkyl Sulfides and of Aryl Alkyl Sulfides To Provide Sulfonium Salts

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