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77407-45-5

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77407-45-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77407-45-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,4,0 and 7 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 77407-45:
(7*7)+(6*7)+(5*4)+(4*0)+(3*7)+(2*4)+(1*5)=145
145 % 10 = 5
So 77407-45-5 is a valid CAS Registry Number.

77407-45-5Relevant articles and documents

DIANION OF N-(o-METHOXYPHENYL)-2-METHYLPROPENAMIDE: A NEW REAGENT FOR THE CONVENIENT SYNTHESIS OF α-METHYLENE-γ-BUTYROLACTONES FROM CARBONYL COMPOUNDS

Tanaka, Kazuhiko,Nozaki, Yoshihito,Tamura, Norikazu,Tanikaga, Rikuhei,Kaji, Aritsune

, p. 1567 - 1568 (1980)

Dianion of N-(o-methoxyphenyl)-2-methylpropenamide was successfully generated on treatment of the amide with t-BuOK-BuLi at -78 degC in THF and utilized as the key reagent for the synthesis of γ-substituted α-methylene-γ-butyrolactones.

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