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17196-74-6

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17196-74-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 17196-74-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,1,9 and 6 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 17196-74:
(7*1)+(6*7)+(5*1)+(4*9)+(3*6)+(2*7)+(1*4)=126
126 % 10 = 6
So 17196-74-6 is a valid CAS Registry Number.

17196-74-6Relevant articles and documents

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Ferris,Kuder

, p. 2527 (1970)

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Tandem Thorpe Reaction/Palladium Catalyzed Asymmetric Allylic Alkylation: Access to Chiral β-enaminonitriles with Excellent Enantioselectivity

Bai, Da-Chang,Liu, Xiu-Yan,Li, Hao,Ding, Chang-Hua,Hou, Xue-Long

, p. 212 - 215 (2017)

A new type of nucleophile, a 3-imino nitrile carbanion generated in situ by Thorpe reaction of acetonitrile with a base, was developed successfully and applied in a Pd-catalyzed asymmetric allylic alkylation with mono-substituted allyl reagents under Pd/S

Green synthesis method of nicotinic acid ester compounds based on non-metallic conditions

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Paragraph 0058; 0061, (2021/09/29)

The invention discloses a green synthesis method based on nicotinic acid ester compounds under non-metallic conditions, and belongs to the technical field of organic synthesis. The method comprises the following steps of (III) replacing cyclopropanol and (II) substituted enamine ester as a raw material, taking tetramethyl piperidine nitrogen oxide as an oxidizing agent, 110 - 130 °C, stirring and reacting in an organic solvent to synthesize a (I) nicotinate compound. The invention provides a green synthesis method based on nicotinic acid ester compounds under non-metallic conditions, wherein cyclopropanols and enamine esters are taken as raw materials, and a polysubstituted nicotinate is synthesized through a strategy of oxidative dehydrogenation of ketene cyclization.

Silver-promoted regio- and stereoselective aminocyanation of alkynes for the synthesis of β-aminoacrylonitriles using N-isocyanoiminotriphenylphosphorane

Chen, Lingnan,Cao, Shanshan,Zhang, Jingping,Wang, Zikun

, p. 1678 - 1681 (2019/05/29)

The silver-promoted intermolecular aminocyanation of alkynes for the synthesis of (Z)-β-aminoacrylonitriles is reported, using N-isocyanoiminotriphenylphosphorane (NIITP) as both the nitrile and amine source. The transformation proceeds in moderate to good yields, and in a regio- and stereoselective manner, using a wide range of acetylenes.

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