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445475-94-5

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445475-94-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 445475-94-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,5,4,7 and 5 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 445475-94:
(8*4)+(7*4)+(6*5)+(5*4)+(4*7)+(3*5)+(2*9)+(1*4)=175
175 % 10 = 5
So 445475-94-5 is a valid CAS Registry Number.

445475-94-5Downstream Products

445475-94-5Relevant articles and documents

Synthesis of Substituted Benzo[ b]thiophenes via Base-Promoted Domino Condensation-Intramolecular C-S Bond Formation

Kumar, Yogendra,Ila, Hiriyakkanavar

supporting information, p. 1698 - 1702 (2021/03/03)

A novel synthesis of 2,3-substituted benzothiophenes is reported, involving a tandem base-mediated condensation of o-iodoarylacetonitriles/acetates/ketones with (hetero)aryldithioesters and an intramolecular C-S bond formation. The reaction affords divers

One-pot synthesis of 2,3-substituted benzo[b]thiophenes via Cu(i) catalysed intramolecular cyclisation from dithioesters

Sandhya, Nagarakere. C.,Nandeesh, Kebbahalli. N.,Rangappa, Kanchugarakoppal S.,Ananda, Sannaiah.

, p. 29939 - 29946 (2015/05/13)

Efficient synthesis of benzo[b]thiophenes from o-halophenyl acetonitrile has been achieved. This novel one-pot procedure involves CuI and pivalic acid catalyzed C-S bond formation using dithioesters followed by a heterocyclization reaction. This efficient

Synthesis of new 2-arylbenzo[b]thiophenes using 'Heck-type' technology

Fournier Dit Chabert, Jérémie,Gozzi, Christel,Lemaire, Marc

, p. 1829 - 1833 (2007/10/03)

Direct 3-substituted benzothiophene arylation using a Heck-type reaction with Pd(OAc)2/n-Bu4NBr as a catalytic system is reported. This reaction was found to perform relatively fast whatever the electron-donating or the electron-withdrawing group at position 3. We also extended this reaction to several aromatic halides, such as benzene, naphthalene and pyridine derivatives, synthesising new 2-arylbenzo[b]thiophenes in moderate to good yields.

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