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353237-65-7

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353237-65-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 353237-65-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,5,3,2,3 and 7 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 353237-65:
(8*3)+(7*5)+(6*3)+(5*2)+(4*3)+(3*7)+(2*6)+(1*5)=137
137 % 10 = 7
So 353237-65-7 is a valid CAS Registry Number.

353237-65-7Downstream Products

353237-65-7Relevant articles and documents

Study of the chemoselectivity of Grignard reagent addition to substrates containing both nitrile and Weinreb amide functionalities

Harikrishna, Kommidi,Rakshit, Ananya,Aidhen, Indrapal Singh

, p. 4918 - 4932 (2013/08/23)

Several substrates containing both cyano and Weinreb amide functionalities have been synthesized to study the chemoselectivity of their reactions with organomagnesium bromides (ArMgBr and RMgBr). Excellent chemoselectivity towards the Weinreb amide was observed in most cases, even in the presence of excess Grignard reagent, affording cyano ketones in good-to-excellent yields. The reactions of various substrates containing both nitrile and Weinreb amide functionalities with Grignard reagents have been studied. The Weinreb amide reacts chemoselectively with excess Grignard reagent to give the corresponding cyano ketones in good yields. This chemoselectivity has been exploited for the synthesis of a key coumarin intermediate towards the 5-lipoxygenase inhibitor MK-0633. Copyright

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