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31609-82-2

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31609-82-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 31609-82-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,6,0 and 9 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 31609-82:
(7*3)+(6*1)+(5*6)+(4*0)+(3*9)+(2*8)+(1*2)=102
102 % 10 = 2
So 31609-82-2 is a valid CAS Registry Number.

31609-82-2Downstream Products

31609-82-2Relevant articles and documents

3, 5-disubstituted isoxazole derivative and synthesis method thereof

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Paragraph 0011; 0023; 0040, (2021/08/14)

The invention provides a 3, 5-disubstituted isoxazole derivative and a synthesis method thereof, and belongs to the technical field of organic synthesis medicines and medical intermediates. The method comprises the following steps: adding a proper solvent

Direct synthesis of 4-fluoroisoxazoles through gold-catalyzed cascade cyclization-fluorination of 2-alkynone O-methyl oximes

Jeong, Yunkyung,Kim, Bom-I,Lee, Jae Kyun,Ryu, Jae-Sang

, p. 6444 - 6455 (2014/08/05)

A tandem protocol for the synthesis of fluorinated isoxazoles has been developed via catalytic intramolecular cyclizations of 2-alkynone O-methyl oximes and ensuing fluorination. The reactions proceed smoothly at room temperature in the presence of 5 mol

BENZO-γ-PYRONES. PART VIII. REACTION OF CHALCONE DIBROMIDES AND β-DIKETONES WITH HYDROXYLAMINE

Maib, Piotr,Basinski, Wlodzimierz,Jerzmanowska, Zofia

, p. 949 - 956 (2007/10/02)

In the reaction of some chalcone dibromides and unsymmetrically substituted diaroylmethanes with hydroxylamine formation of mixture of isomeric isoxazoles was observed and the percentage content of each isomer was established.A new mechanism is proposed for the reaction of β-diketones with hydroxylamine, based on enolic form in accordance with expected substituents effect.

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