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1218818-87-1

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1218818-87-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1218818-87-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,8,8,1 and 8 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1218818-87:
(9*1)+(8*2)+(7*1)+(6*8)+(5*8)+(4*1)+(3*8)+(2*8)+(1*7)=171
171 % 10 = 1
So 1218818-87-1 is a valid CAS Registry Number.

1218818-87-1Relevant articles and documents

A green approach for highly regioselective syntheses of furo[3,2-h]quinolines in aqueous medium

Sarkar, Swarbhanu,Pal, Rammyani,Chatterjee, Nivedita,Dutta, Samrat,Naskar, Subhendu,Sen, Asish Kumar

, p. 3805 - 3809 (2013/07/27)

An environmentally benign, high yielding, and operationally simple protocol has been developed for the regioselective synthesis of furo[3,2-h]quinolines in aqueous micellar medium involving Cu-free domino Sonogashira reaction followed by 5-endo-dig-cyclization of substituted 8-hydroxyquinolines and terminal alkyne by using Pd(C6H5CN)Cl2 as catalyst and 2-pyridinecarboxaldehyde methylphenyl hydrazone as ligand under aerobic condition.

One-pot tandem synthesis of Furo[3,2- h ]quinolines by a sonogashira cross-coupling and cyclization reaction supported by basic alumina under microwave irradiation

Saha, Pritam,Naskar, Subhendu,Paira, Rupankar,Mondal, Shyamal,Maity, Arindam,Sahu, Krishnendu B.,Paira, Priyankar,Hazra, Abhijit,Bhattacharya, Diptendu,Banerjee, Sukdeb,Mondal, Nirup B.

experimental part, p. 486 - 492 (2010/04/29)

Acetylenic 8-quinolinols generated in situ by the Sonogashira cross-coupling reaction are efficiently converted into furo[3,2-h]quinolines by microwave-assisted, copper-catalyzed, intramolecular cyclization in the presence of basic alumina. Georg Thieme Verlag Stuttgart New York.

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