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1630723-70-4

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1630723-70-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1630723-70-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,3,0,7,2 and 3 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1630723-70:
(9*1)+(8*6)+(7*3)+(6*0)+(5*7)+(4*2)+(3*3)+(2*7)+(1*0)=144
144 % 10 = 4
So 1630723-70-4 is a valid CAS Registry Number.

1630723-70-4Downstream Products

1630723-70-4Relevant articles and documents

One-pot protocol for N-alkylation of purine, pyrimidine and azole derivatives via alcohols using Ph3P/I2: simple route for carboacyclic nucleoside synthesis

Soltani Rad, Mohammad Navid,Soleimani, Faezeh

, p. 4947 - 4953 (2016)

A simple and efficient synthetic protocol for the one-pot N-alkylation of nucleobases and their related N-heterocycles via alcohols utilizing the combination of PPh3and I2is reported. In this protocol purine, pyrimidine and azole derivatives underwent the N-alkylation reaction with diverse primary alcohols using Ph3P/I2in the presence of Et3N-K2CO3in anhydrous DMF to give the N-alkyl adducts (carboacyclic nucleosides) in good yields (up to 90%). The influence of some parameters in this reaction including type of solvent, base, reagents and temperature was discussed. In addition, this protocol has proved the favorable selectivity towards primary hydroxyl versus secondary hydroxyl group in diols.

Highly efficient protocol for one-pot N-alkylation of nucleobases using alcohols in bmim[Br]: A rapid route to access acyclic nucleosides

Rad, Mohammad Navid Soltani,Behrouz, Somayeh,Zarenezhad, Elham,Kaviani, Narjes

, p. 1603 - 1612 (2015/07/07)

Highly efficient protocol for one-pot N-alkylation of nucleobases using alcohol in ionic liquid media as a straightforward route to access acyclic nucleoside was described. In this protocol purine, pyrimidine as well as azole derivatives underwent the N-a

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