3558-06-3

Basic information

• Product Name: cyclopentyl 4-methylbenzenesulfonate
• CAS NO: 3558-06-3
• Molecular Formula: C₁₂H₁₆O₃S
• Molecular Weight: 240.3186
• Mol File: 3558-06-3.mol
• Article Data: 18

Chemical Properties

• Boiling Point: 367°C at 760 mmHg
• Flash Point: 175.8°C
• Density: 1.22g/cm³
• Vapor Pressure: 2.97E-05mmHg at 25°C
• Refractive Index: 1.555
• CAS DataBase Reference: cyclopentyl 4-methylbenzenesulfonate(CAS DataBase Reference)
• NIST Chemistry Reference: cyclopentyl 4-methylbenzenesulfonate(3558-06-3)
• EPA Substance Registry System: cyclopentyl 4-methylbenzenesulfonate(3558-06-3)

Safety Data

• Hazardous Substances Data: 3558-06-3(Hazardous Substances Data)

Upstream product

• 185-94-4 bicyclo<2.1.0>pentane 
• 104-15-4 toluene-4-sulfonic acid 
• 64-19-7 acetic acid 
• 96-41-3 Cyclopentanol 
• 824-79-3 sodium 4-methylbenzenesulfinate 
• 3637-61-4 1-amino-cyclopentanemethanol 
• 98-59-9 p-toluenesulfonyl chloride 

Downstream Products

• 700-88-9 cyclopentylbenzene 
• 160567-88-4 N-cyclopentyl-4-methylaniline 
• 1019619-33-0 4-chloro-N-cyclopentylaniline 
• 183496-95-9 4-(methoxy)phenylaminocyclopentane 
• 66217-55-8 2-cyclopentyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 
• 1392488-92-4 C₂₁H₂₄O₄ 
• 1154415-77-6 C₁₃H₁₅ClO₃ 
• 945557-13-1 4-(1-cyclopentyl-6-nitro-1H-indol-3-yl)-benzonitrile 
• 143661-65-8 2-fluoro-5-cyclopentyloxyaniline 
• 141772-32-9 2-fluoro-4-chloro-5-cyclopentyloxyaniline 
• 141772-41-0 methyl N-(4-chloro-5-cyclopentyloxy-2-fluorophenyl)carbamate 
• 196713-38-9 2-Benzenesulfinyl-2-[2-(bis-ethoxycarbonyl-methylene)-cyclopentyl]-malonic acid diethyl ester 
• 196713-33-4 2-[2-(Bis-ethoxycarbonyl-methylene)-cyclopentyl]-2-phenylsulfanyl-malonic acid diethyl ester 
• 196713-37-8 2-Benzenesulfinyl-2-cyclopentyl-malonic acid diethyl ester 

Relevant articles and documents

Sterically Unprotected Nucleophilic Boron Cluster Reagents

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Enantioselective Synthesis of Indolines, Benzodihydrothiophenes, and Indanes by C?H Insertion of Donor/Donor Carbenes

We employ a single catalyst/oxidant system to enable the asymmetric syntheses of indolines, benzodihydrothiophenes, and indanes by C?H insertion of donor/donor carbenes. This methodology enables the rapid construction of densely substituted five-membered rings that form the core of many drug targets and natural products. Furthermore, oxidation of hydrazones to the corresponding diazo compounds proceeds in situ, enabling a relatively facile one- or two-pot protocol in which isolation of potentially explosive diazo alkanes is avoided. Regioselectivity studies were performed to determine the impact of sterics and electronics in donor/donor metal carbene C?H insertions to form indolines. This methodology was applied to a variety of substrates in high yield, diastereomeric, and enantiomeric ratios and to the synthesis of a patented indane estrogen receptor agonist with anti-cancer activity.

Cobalt-Catalyzed Silylcarbonylation of Unactivated Secondary Alkyl Tosylates at Low Pressure

A catalytic preparation of silyl enol ethers from unactivated secondary alkyl tosylates is reported. An inexpensive cobalt catalyst is used under mild conditions with low pressures of carbon monoxide. Nucleophilic, anionic cobalt carbonyls facilitate the catalytic activation of a range of alkyl tosylates. The silylcarbonylation offers a practical approach to synthetically valuable silyl enol ethers from simple starting materials.