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37967-82-1

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37967-82-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 37967-82-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,7,9,6 and 7 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 37967-82:
(7*3)+(6*7)+(5*9)+(4*6)+(3*7)+(2*8)+(1*2)=171
171 % 10 = 1
So 37967-82-1 is a valid CAS Registry Number.

37967-82-1Relevant articles and documents

Modular synthesis of 3,6-disubstituted-1,2,4-triazines via the cyclodehydration of β-keto- N -acylsulfonamides with hydrazine salts

Dowling, Matthew S.,Jiao, Wenhua,Hou, Jie,Jiang, Yuchun,Gong, Shangsheng

, p. 4229 - 4238 (2018)

A straightforward method for preparing 3,6-disubstituted-1,2,4-triazines through a redox-efficient cyclodehydration of β-keto-N-acylsulfonamides with hydrazine salts is described. Two approaches for synthesizing the requisite β-keto-N-acylsulfonamides are presented, which allow for the late stage incorporation of either the C3 or C6 substituent in a flexible manner from acid chlorides or α-bromoketones, respectively. The scope of this methodology includes primary and secondary sp3-linked substituents at both the C3 and C6 positions, and the mild reaction conditions tolerate a variety of sensitive functionalities.

STUDIES ON AS-TRIAZINE DERIVATIVES. IX. SYNTHESIS OF 5-SUBSTITUTED 1,2,4-TRIAZINE DERIVATIVES THROUGH AN ADDITION REACTION AND SUBSEQUENT OXIDATION

Konno, Shoetsu,Ohba, Setsuya,Sagi, Mataichi,Yamanaka, Hiroshi

, p. 1378 - 1382 (2007/10/02)

The addition reactions of various nucleophiles to 6-methyl-3-phenyl-1,2,4-triazine (1) were investigated and a practical preparation of 1 was developed.The reactions showed many similarities to those of quinazoline (at the 4-position) and acridine (at the

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