156945-70-9

Basic information

• Product Name: 4-oxobutyl 4-methylbenzenesulfonate
• Synonyms: 4-oxobutyl 4-methylbenzenesulfonate
• CAS NO: 156945-70-9
• Molecular Weight: 242.296
• Mol File: 156945-70-9.mol

Chemical Properties

• CAS DataBase Reference: 4-oxobutyl 4-methylbenzenesulfonate(CAS DataBase Reference)
• NIST Chemistry Reference: 4-oxobutyl 4-methylbenzenesulfonate(156945-70-9)
• EPA Substance Registry System: 4-oxobutyl 4-methylbenzenesulfonate(156945-70-9)

Safety Data

• Hazardous Substances Data: 156945-70-9(Hazardous Substances Data)

Upstream product

• 6972-09-4 4-methylbenzenesulfonic acid, 4-hydroxybutyl ester 
• 98-59-9 p-toluenesulfonyl chloride 
• 1310031-37-8 C₃₃H₄₂O₁₂S₃ 
• 778-29-0 but-3-enyl 4-methylbenzenesulfonate 

Downstream Products

• 886216-71-3 (R)-4-(2-methylpropan-2-ylsulfinamido)butyl 4-methylbenzenesulfonate 
• 1310031-37-8 C₃₃H₄₂O₁₂S₃ 
• 1263290-86-3 1-azido-4-tosyloxybutan-1-ol 
• 23068-88-4 1,1-dimethoxy-4-(toluene-4-sulfonyloxy)-butane 

Relevant articles and documents

Stereoselective, Multicomponent Approach to Quaternary Substituted Hydroindole Scaffolds

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Rapid synthesis of the core scaffold of crinane and haemanthamine through a multi-component approach

A rapid synthesis of the core structures of crinane and haemanthamine has been developed, enabled by a multicomponent approach. This work constitutes a formal synthesis of crinane and sets the stage for access to both families of natural products and key

Tert-Butyl Nitrite: Organic Redox Cocatalyst for Aerobic Aldehyde-Selective Wacker-Tsuji Oxidation

An aldehyde-selective aerobic Wacker-Tsuji oxidation is developed. Using tert-butyl nitrite as a simple organic redox cocatalyst instead of copper or silver salts, a variety of aldehydes were achieved as major products in up to 30/1 regioselectivity as well as good to high yields at room temperature.

Viability of 4,5-dihydro-1,2,3,4-oxatriazoles reinvestigated

The first procedures to prepare 4-bromo-4-methylpentanal and 4-azido-4-methylpentanal are reported. The latter compound and also the parent 4-azidobutanal do not lead to 4,5-dihydro-1,2,3,4-oxatriazoles by intramolecular 1,3-dipolar cycloaddition, although it was claimed to be so in the literature. The NMR spectroscopic data of such heterocycles reported previously do not agree with those of similar substances and are incompatible with 13C NMR spectroscopic chemical shifts calculated by quantum chemical methods in the presented work. These calculations show furthermore that the intramolecular cycloaddition of 4-azidobutanals to give the title compounds is strongly endothermic and thus most probably not possible.