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70207-45-3

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70207-45-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 70207-45-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,2,0 and 7 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 70207-45:
(7*7)+(6*0)+(5*2)+(4*0)+(3*7)+(2*4)+(1*5)=93
93 % 10 = 3
So 70207-45-3 is a valid CAS Registry Number.

70207-45-3Relevant articles and documents

Suzuki-Miyaura cross-coupling of benzylic phosphates with arylboronic acids

McLaughlin, Mark

, p. 4875 - 4878 (2005)

(Chemical Equation Presented) Suzuki-Miyaura cross-coupling of benzylic phosphates with arylboronic acids was investigated. Optimum conditions employed the simple catalytic system of palladium(II) acetate (1 mol %) and triphenylphosphine (4 mol %) with either potassium phosphate or potassium carbonate as the base and toluene as the solvent at 90°C. Using the developed conditions, a series of structurally diverse diarylmethanes were prepared.

Synthesis of diarylmethanes through palladium-catalyzed coupling of benzylic phosphates with arylsilanes

Zhang, Pengbo,Xu, Jian,Gao, Yuzhen,Li, Xueqin,Tang, Guo,Zhao, Yufen

, p. 2928 - 2932 (2015/01/16)

An efficient approach to the benzylation of arenes has been developed. The reactions described provide straightforward access to diarylmethanes through Pd-catalyzed coupling of benzylic phosphates with arylsilanes in good to excellent yields. The reaction tolerates a wide range of functionalities such as halide, alkoxyl, and nitro groups.

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