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1392140-22-5

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1392140-22-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1392140-22-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,9,2,1,4 and 0 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1392140-22:
(9*1)+(8*3)+(7*9)+(6*2)+(5*1)+(4*4)+(3*0)+(2*2)+(1*2)=135
135 % 10 = 5
So 1392140-22-5 is a valid CAS Registry Number.

1392140-22-5Downstream Products

1392140-22-5Relevant articles and documents

Catalytic enantioselective halolactonization of enynes and Alkenes

Zhang, Wei,Liu, Na,Schienebeck, Casi M.,Decloux, Kyle,Zheng, Suqing,Werness, Jenny B.,Tang, Weiping

, p. 7296 - 7305 (2012/07/03)

New organocatalysts have been developed for the enantioselective halolactonization of (Z)-1,3-enynes and 1,1-disubstituted alkenes. In the case of 1,3-enynes, the carboxylate nucleophile and halogen electrophile were added to the conjugated π-system from the same face. Up to 99%ee was achieved for the 1,4-syn-bromolactonization of conjugated (Z)-1,3-enynes. Based on the results from the enyne halolactonization, a second generation of catalysts was designed for simple olefins. Up to 91%ee was observed for chlorolactonization of 1,1-disubstituted alkenes. The catalysts developed for the enantioselective halolactonization of both enynes and alkenes are composed of a cinchona alkaloid skeleton tethered to a urea group.

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