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14960-81-7

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14960-81-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 14960-81-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,4,9,6 and 0 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 14960-81:
(7*1)+(6*4)+(5*9)+(4*6)+(3*0)+(2*8)+(1*1)=117
117 % 10 = 7
So 14960-81-7 is a valid CAS Registry Number.

14960-81-7Relevant articles and documents

A short divergent approach to highly substituted carbazoles and β-carbolines via in situ-generated diketoindoles

Untergehrer, Martin,Bracher, Franz

, (2020/03/03)

Based on an aza-alkylation/Michael addition cascade reaction developed by Kim and co-workers we have developed divergent cascade reactions leading to either highly substituted 1-hydroxycarbazoles, 3-hydroxycarbazoles or β-carbolines, starting from readily

Divergent Syntheses of Carbazole Alkaloids

Ji, Feixiang,Huang, He,Li, Mengyang,Guo, Yanqin,Song, Chuanjun,Chang, Junbiao

, p. 3921 - 3926 (2018/09/29)

Starting from common intermediate methyl 1-hydroxy-9 H -carbazole-3-carboxylate, synthetic routes toward murrayaquinone A, olivacine, and N -methylcalothrixin B were developed.

Synthesis of substituted carbazoles and β-carbolines by cyclization of diketoindole derivatives

Duval, Eric,Cuny, Gregory D.

, p. 5411 - 5413 (2007/10/03)

A new route to substituted β-carbolines and carbazoles is described. Diketoindole intermediates, prepared by Friedel-Crafts acylations of 3-substituted indoles, have been converted to 3-hydroxycarbazoles and β-carbolines in good yields, 51-96% and 82-97%, respectively. This method also allows for the formation of 4-substituted β-carbolines. The application of this methodology to the synthesis of the natural products hyellazole and 6-chlorohyellazole is also described.

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