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61971-67-3

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61971-67-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 61971-67-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,1,9,7 and 1 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 61971-67:
(7*6)+(6*1)+(5*9)+(4*7)+(3*1)+(2*6)+(1*7)=143
143 % 10 = 3
So 61971-67-3 is a valid CAS Registry Number.

61971-67-3Downstream Products

61971-67-3Relevant articles and documents

Direct Synthesis of Enones by Visible-Light-Promoted Oxygenation of Trisubstituted Olefins Using Molecular Oxygen

Harada, Shinji,Matsuda, Daiki,Morikawa, Takahiro,Nishida, Atsushi

, p. 1372 - 1377 (2020)

A one-step synthesis of enones from olefins is described. The reaction was performed under visible-light irradiation in the presence of molecular oxygen and a photocatalyst. The reaction proceeded with various types of trisubstituted olefins to give enones in good yields with high regioselectivity. In particular, oxygen- and nitrogen-containing functional groups, heteroaromatic rings, and cyclopropanes were tolerated. Mechanistic studies and previous reports indicated that the active oxygen species generated in the reaction system is singlet oxygen.

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