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66950-73-0

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66950-73-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 66950-73-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,9,5 and 0 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 66950-73:
(7*6)+(6*6)+(5*9)+(4*5)+(3*0)+(2*7)+(1*3)=160
160 % 10 = 0
So 66950-73-0 is a valid CAS Registry Number.

66950-73-0Relevant articles and documents

Diversity-oriented synthesis of N, N, O-trisubstituted hydroxylamines from alcohols and amines by N-O bond formation

Hill, Jarvis,Hettikankanamalage, Asiri A.,Crich, David

, p. 14820 - 14825 (2020)

Magnesium dialkylamides react with alcohol-derived 2-methyl-2-tetrahydropyranyl alkyl peroxides (MTHPs) in tetrahydrofuran at 0 °C to give N,N,O-trisubstituted hydroxylamines suitable for medicinal chemistry purposes in good to excellent yields. A wide range of secondary alkyl and aryl amines and primary and secondary alcohol-derived MTHPs are compatible with the described reaction which, coupled with the enormous diversity of commercially available alcohols and secondary amines, suggests broad applicability of the reaction in fragment-based library design.

Rapid, One-Step Synthesis of α-Ketoacetals via Electrophilic Etherification

Paris, Timothy J.,Schwartz, Chris,Sundall, Eric,Willand-Charnley, Rachel

, p. 14797 - 14811 (2021/10/20)

Herein, we report a rapid, one-step synthesis of α-ketoacetals via electrophilic etherification of α-alkoxy enolates and monoperoxyacetals. Methyl, primary, and secondary α-ketoacetals were obtained in 44-63% yields from tetrahydropyranyl substrates; usin

Enabling the Use of Alkyl Thianthrenium Salts in Cross-Coupling Reactions by Copper Catalysis

Chen, Cheng,Lu, Hongjian,Shi, Zhuangzhi,Wang, Minyan,Zhao, Binlin

supporting information, p. 21756 - 21760 (2021/08/30)

Alkyl groups are one of the most widely used groups in organic synthesis. Here, a a series of thianthrenium salts have been synthesized that act as reliable alkylation reagents and readily engage in copper-catalyzed Sonogashira reactions to build C(sp3)?C(sp) bonds under mild photochemical conditions. Diverse alkyl thianthrenium salts, including methyl and disubstituted thianthrenium salts, are employed with great functional breadth, since sensitive Cl, Br, and I atoms, which are poorly tolerated in conventional approaches, are compatible. The generality of the developed alkyl reagents has also been demonstrated in copper-catalyzed Kumada reactions.

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