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91633-32-8

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91633-32-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91633-32-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,6,3 and 3 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 91633-32:
(7*9)+(6*1)+(5*6)+(4*3)+(3*3)+(2*3)+(1*2)=128
128 % 10 = 8
So 91633-32-8 is a valid CAS Registry Number.

91633-32-8Relevant articles and documents

Design, Synthesis, and Biological Evaluation of Substituted 4,6-Dihydrospiro[[1,2,3]triazolo[4,5- b]pyridine-7,3′-indoline]-2′,5(3 H)-dione Analogues as Potent NS4B Inhibitors for the Treatment of Dengue Virus Infection

Xu, Jimin,Xie, Xuping,Ye, Na,Zou, Jing,Chen, Haiying,White, Mark A.,Shi, Pei-Yong,Zhou, Jia

, p. 7941 - 7960 (2019)

A series of substituted 4,6-dihydrospiro[[1,2,3]triazolo[4,5-b]pyridine-7,3′-indoline]-2′,5(3H)-dione analogues were synthesized and evaluated as potent dengue virus inhibitors. Throughout a structure-activity relationship exploration on the amide of the

SUBSTITUTED 4,6-DIHYDROSPIRO[[1,2,3]TRIAZOLO[4,5-B]PYRIDINE-7,3'-INDOLINE]-2',5(3H)-DIONE ANALOGUES

-

, (2021/02/19)

A series of substituted 4,6-dihydrospiro[[1,2,3]triazolo[4,5-b]pyridine-7,3′-indoline]-2′,5(3H)-dione analogues, the use thereof and the preparation thereof.

Highly selective direct azidation of alcohols over a heterogeneous povidone-phosphotungstic solid acid catalyst

Kamble, Sumit,More, Sagar,Rode, Chandrashekhar

, p. 10240 - 10245 (2016/12/06)

A simple protocol for the selective azidation of alcohols is developed using a solid acid hybrid of a povidone and phosphotungstic acid (PVP-PWA) using azidotrimethylsilane as an azide source at room temperature. In a broad substrate scope, various activated as well as unactivated benzylic and diphenyl alcohols were treated smoothly with TMS-N3 to selectively produce only azide products with excellent yields in a very short reaction time of 2 h. FT-IR confirmed the stability of the catalyst with retention of the Keggins structure after the reaction. Recycling experiments demonstrated the reusability of the PVP-PWA (3?:?1) several times without losing its original activity.

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