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31367-69-8

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31367-69-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 31367-69-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,3,6 and 7 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 31367-69:
(7*3)+(6*1)+(5*3)+(4*6)+(3*7)+(2*6)+(1*9)=108
108 % 10 = 8
So 31367-69-8 is a valid CAS Registry Number.

31367-69-8Relevant articles and documents

Potassium isopropoxide: For sulfination it is the only base you need!

Sayah, Mahmoud,Organ, Michael G.

, p. 16196 - 16199 (2013)

PEPPSI max: KOiPr has been identified as the key ingredient for Pd-catalyzed sulfination (see scheme). Potassium is essential to keep the thiol concentration low, and isopropoxide is necessary for precatalyst activation and to break up Pd-sufide-based resting states. Together with the reactive Pd-PEPPSI-IPentCl o-picoline catalyst, this system couples profoundly deactivated partners at RT that other catalysts cannot accomplish in refluxing toluene. Copyright

Base-Catalyzed Elimination of Para-Substituted Thiophenoxides from 4-(Arylthio)azetidin-2-ones

Gu, Huizhong,Fedor, Leo R.

, p. 5655 - 5657 (2007/10/02)

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Process for preparing 2-amino-5-nitrophenol derivatives

-

, (2008/06/13)

A process for efficiently preparing 2-amino-5-nitrophenol derivatives in which benzoxazole derivatives are subjected to nucleophilic substitution reaction at the 5 position thereof to obtain corresponding benzoxazole derivatives, and the oxazole ring of the benzoxazole derivatives is then subjected to ring-opening to obtain 2-amino-5-nitrophenol derivatives. The 2-amino-5-nitrophenol derivatives are useful as industrial starting materials, reducing agents or antioxidants and intermediates for cyan-image-forming couplers.

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