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4-ethynylphenyl 4-methylbenzene-1-sulfonate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1109280-50-3

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1109280-50-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1109280-50-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,0,9,2,8 and 0 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1109280-50:
(9*1)+(8*1)+(7*0)+(6*9)+(5*2)+(4*8)+(3*0)+(2*5)+(1*0)=123
123 % 10 = 3
So 1109280-50-3 is a valid CAS Registry Number.

1109280-50-3Relevant academic research and scientific papers

Diastereoselective synthesis of propargylic N-hydroxylamines via NHC-copper(I) halide-catalyzed reaction of terminal alkynes with chiral nitrones on water

Wo?niak,Staszewska-Krajewska,Michalak

, p. 1933 - 1936 (2015)

The first NHC-copper(I)-halide catalyzed addition of terminal alkynes to enantiomerically pure nitrones on water is described. This reaction provides a straightforward access to propargylic N-hydroxylamines in excellent yield and with excellent stereoselectivity (up to 97%). The presented methodology was applied as a key step in the formal synthesis of (-)-lentiginosine.

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