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1620100-87-9

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1620100-87-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1620100-87-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,0,1,0 and 0 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1620100-87:
(9*1)+(8*6)+(7*2)+(6*0)+(5*1)+(4*0)+(3*0)+(2*8)+(1*7)=99
99 % 10 = 9
So 1620100-87-9 is a valid CAS Registry Number.

1620100-87-9Relevant articles and documents

Novel Production Method for Aminated Azine

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Paragraph 0255-0258; 0326-3330, (2021/07/20)

[4] The present invention relates to a novel process for the preparation of bicyclic continuous ring compounds. To the present invention, the novel reactivity of acetal utilized as a unit structure for protecting an existing carbonyl group or hydroxyl gro

Rh(III)-Catalyzed C(8)-H Activation of Quinoline N-Oxides: Regioselective C-Br and C-N Bond Formation

Dhiman, Ankit Kumar,Gupta, Shiv Shankar,Sharma, Ritika,Kumar, Rakesh,Sharma, Upendra

, p. 12871 - 12880 (2019/11/02)

A highly efficient and regioselective Rh(III)-catalyzed protocol for C8-bromination and amidation of quinoline N-oxide was developed. The transformation was found to be successful up to gram scale with excellent functional group tolerance and wide substrate scope. The mechanistic study revealed five-membered rhodacycle with quinoline N-oxide as a key intermediate for regioselective C8-functionalization. In addition, NFSI (N-fluorobis(phenylsulfonyl)-imide) was explored as an amidating reagent for C8-amidation of quinoline N-oxide for the first time.

Recent developments in the chemistry of heteroaromatic N -oxides

Wang, Youliang,Zhang, Liming

, (2015/02/19)

Selected developments in the chemistry of heteroaromatic N-oxides since 2001 are presented in this review. The use of these N-oxides, both in late-transition-metal-catalyzed oxidations of carbon-carbon triple bonds and in regioselective C-H functionalizations of the heteroarene, are contemporary topics of interest and the focus of the discussion. 1 Introduction 2 Synthesis of Heteroaromatic N-Oxides 2.1 Direct Oxidation of Hindered Heteroarenes 2.2 Through Construction of Heteroaromatic Rings 3 Heteroaromatic N-Oxides as Oxidants 3.1 Alkyne Oxidation 3.2 Allene Oxidation 3.3 Carbene Oxidation 4 Heteroaromatic N-Oxides as Substrates 4.1 Deoxygenative ortho-C-H Functionalization with Prior Activation 4.2 Deoxygenative ortho-C-H Functionalization with Nonstabilized Carbanions 4.3 Nondeoxygenative C-H Functionalization 4.3.1 ortho-C-H Functionalization 4.3.2 N-Oxide Directed ortho-Alkyl C-H Functionalization 4.3.3 N-Oxide Directed Remote C-H Functionalization 4.4 1,3-Dipolar Cycloaddition 5 Conclusion and Outlook.

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