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45990-93-0

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45990-93-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 45990-93-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,5,9,9 and 0 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 45990-93:
(7*4)+(6*5)+(5*9)+(4*9)+(3*0)+(2*9)+(1*3)=160
160 % 10 = 0
So 45990-93-0 is a valid CAS Registry Number.

45990-93-0Relevant articles and documents

Intramolecular Addition of a Dimethylamino C(sp 3)-H Bond across C-C Triple Bonds Using IrCl(DTBM-SEGPHOS)(ethylene) Catalyst: Synthesis of Indoles from 2-Alkynyl- N -methylanilines

Ohmura, Toshimichi,Yagi, Kaito,Torigoe, Takeru,Suginome, Michinori

supporting information, p. 3057 - 3064 (2021/06/28)

Intramolecular addition of a C(sp 3)-H bond of the dimethylamino group across the C-C triple bond in 2-alkynyl- N, N -dimethylanilines is effectively catalyzed by a new iridium complex, IrCl(DTBM-SEGPHOS)(C 2H 4), in mesitylene at 150 °C. The intramolecular C(sp 3)-H addition is followed by double-bond isomerization to afford 3-substituted indoles in good to high yields.

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