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260247-89-0

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260247-89-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 260247-89-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,0,2,4 and 7 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 260247-89:
(8*2)+(7*6)+(6*0)+(5*2)+(4*4)+(3*7)+(2*8)+(1*9)=130
130 % 10 = 0
So 260247-89-0 is a valid CAS Registry Number.

260247-89-0Downstream Products

260247-89-0Relevant articles and documents

Mannich bases as enone precursors for water-mediated efficient synthesis of 2,3,6-trisubstituted pyridines and 5,6,7,8-tetrahydroquinolines

Hanashalshahaby, Essam Hamied Ahmed,Unaleroglu, Canan

, p. 374 - 380 (2015)

A highly efficient, regioselective, and environmentally friendly method has been developed for water-mediated synthesis of 2,3,6-trisubstituted pyridines and 5,6,7,8-tetrahydroquinolines. The introduced method allows easy preparation of various polysubstituted pyridines and 5,6,7,8-tetrahydroquinolines via domino reaction of an enolizable ketone, ammonia and enones derived from different Mannich bases in mild reaction conditions. Montmorillonite K-10 promoted this one-pot three-component reaction and gave both new and known 2,3,6-trisubstituted pyridines and 5,6,7,8-tetrahydroquinolines in good yields. The reaction protocol provides a wide array of functionality in construction of polysubstituted pyridines and 5,6,7,8-tetrahydroquinolines from commercially available starting materials in easily applicable and environmentally friendly conditions.

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