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78823-41-3

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78823-41-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 78823-41-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,8,2 and 3 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 78823-41:
(7*7)+(6*8)+(5*8)+(4*2)+(3*3)+(2*4)+(1*1)=163
163 % 10 = 3
So 78823-41-3 is a valid CAS Registry Number.

78823-41-3Relevant articles and documents

Direct inter- and intramolecular addition of amides to arylalkenes promoted by KOt-Bu/DMF

Wang, Wei-Juan,Zhao, Xu,Tong, Lang,Chen, Jia-Hua,Zhang, Xue-Jing,Yan, Ming

, p. 8557 - 8565 (2014)

Direct addition of tetrahydroisoquinoline derived amides to arylalkenes has been achieved in the presence of KOt-Bu/DMF. Both intermolecular and intramolecular reactions could occur in good yields. α-Amido alkyl radicals are proposed to be generated under the reaction conditions. The reaction is efficient for the synthesis of seven-membered nitrogen heterocycles. A homoprotoberberine was prepared conveniently via this method.

Reaction of Diazonium Salts with Transition Metals. 6. Preparation of Mixed Acid Anhydrides from Arenediazonium Salts and Sodium Carboxylates under Palladium(0) Catalysis

Kikukawa, Kiyoshi,Kono, Kiyoshi,Nagira, Kazuhiko,Wada, Fumio,Matsuda, Tsutomu

, p. 4413 - 4416 (2007/10/02)

The palladium(0)-catalyzed reaction of arenediazonium tetrafluoroborates with carbon monoxide and sodium carboxylates in acetonitrile at 25 deg C gave mixed acid anhydrides, ArCOOCOR (Ar = 3-Me-Ph, 4-Me-Ph, 2-MeO-Ph, 4-Br-Ph, 4-I-Ph, 3-NO2-Ph, 4-NO2-Ph, and Ph; R = H, Me, Et, t-Bu, and Ph) in good yields.Homoaromatic acid anhydrides, (ArCO)2O, were obtained by heating of ArCOOCOMe at 100-120 deg C under vacuum.ArCOOCO-t-Bu can be utilized to obtain the corresponding arenecarboxamides by the reaction with some amines.

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