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3,3,5-Trimethyl-1-phenyl-1,3-dihydro-indol-2-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

71443-70-4

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71443-70-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71443-70-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,4,4 and 3 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 71443-70:
(7*7)+(6*1)+(5*4)+(4*4)+(3*3)+(2*7)+(1*0)=114
114 % 10 = 4
So 71443-70-4 is a valid CAS Registry Number.

71443-70-4Downstream Products

71443-70-4Relevant academic research and scientific papers

Enantioselective Synthesis of C?N Axially Chiral N-Aryloxindoles by Asymmetric Rhodium-Catalyzed Dual C?H Activation

Li, Honghe,Yan, Xiaoqiang,Zhang, Jitan,Guo, Weicong,Jiang, Jijun,Wang, Jun

, p. 6732 - 6736 (2019)

The first enantioselective Satoh–Miura-type reaction is reported. A variety of C?N axially chiral N-aryloxindoles have been enantioselectively synthesized by an asymmetric rhodium-catalyzed dual C?H activation reaction of N-aryloxindoles and alkynes. High yields and enantioselectivities were obtained (up to 99 % yield and up to 99 % ee). To date, it is also the first example of the asymmetric synthesis of C?N axially chiral compounds by such a C?H activation strategy.

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