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33930-64-2

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33930-64-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 33930-64-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,9,3 and 0 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 33930-64:
(7*3)+(6*3)+(5*9)+(4*3)+(3*0)+(2*6)+(1*4)=112
112 % 10 = 2
So 33930-64-2 is a valid CAS Registry Number.

33930-64-2Relevant articles and documents

Oxidation of the inert sp3C-H bonds of tetrahydroisoquinolines through C-H activation relay (CHAR): construction of functionalized isoquinolin-1-ones

Yuan, Yuan,Zhang, Shuwei,Sun, Zheng,Su, Yichun,Ma, Qiyuan,Yuan, Yu,Jia, Xiaodong

, p. 3347 - 3350 (2021)

A TBN/O2-initiated oxidation of the relatively inert 3,4-C-H bonds of THIQs was accomplished, in which the existence of an α-phosphoric ester group is crucial to enable dioxygen trapping and intramolecular HAT (C-H activation relay,CHAR), reali

Visible-Light-Induced Controlled Oxidation of N-Substituted 1,2,3,4-Tetrahydroisoquinolines for the Synthesis of 3,4-Dihydroisoquinolin-1(2H)-ones and Isoquinolin-1(2H)-ones

Bansode, Ajay H.,Suryavanshi, Gurunath

supporting information, p. 1390 - 1400 (2021/01/26)

A visible light-rose bengal-TBHP mediated, controlled oxidation of N-substituted 1,2,3,4-tetrahydroisoquinolines is developed for the synthesis of 3,4-dihydroisoquinolin-1(2H)-ones and isoquinolin-1(2H)-ones. The present method feature's a broad substrate scope, good functional group tolerances, and the products were prepared in good to excellent yields. The developed methodology further demonstrated in the synthesis of isoindolo[2,1-b] isoquinolin-5(7H)-one (topoisomerase-I inhibitor). (Figure presented.).

Copper-Mediated Oxidative Functionalization of C(sp3)-H Bonds with Isoquinolines: Two-Step Synthesis of 5-Oxaprotoberberinones

Wang, Dingyi,Zhang, Rongxing,Deng, Ruihong,Lin, Sen,Guo, Shengmei,Yan, Zhaohua

, p. 11162 - 11167 (2016/11/28)

A copper-mediated oxidative functionalization of C(sp3)-H bonds with isoquinolines via a radical process without ligands was achieved. The present system exhibits a novel pathway for the preparation of N-alkyl (benzyl) isoquinolin-1(2H)-ones in moderate to high yields. In addition, this procedure provides a simple method to afford 5-oxaprotoberberinones and their derivatives in two steps.

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