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4439-11-6

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4439-11-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4439-11-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,4,3 and 9 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 4439-11:
(6*4)+(5*4)+(4*3)+(3*9)+(2*1)+(1*1)=86
86 % 10 = 6
So 4439-11-6 is a valid CAS Registry Number.

4439-11-6Relevant articles and documents

Aminofluorene-Mediated Biomimetic Domino Amination-Oxygenation of Aldehydes to Amides

Ghosh, Santanu,Jana, Chandan K.

supporting information, p. 5788 - 5791 (2016/11/29)

A conceptually novel biomimetic strategy based on a domino amination-oxygenation reaction was developed for direct amidation of aldehydes under metal-free conditions employing molecular oxygen as the oxidant. 9-Aminofluorene derivatives acted as pyridoxamine-5′-phosphate equivalents for efficient, chemoselective, and operationally simple amine-transfer oxygenation reaction. Unprecedented RNH transfer involving secondary amine to produce secondary amides was achieved. In the presence of 18O2, 18O-amide was formed with excellent (95%) isotopic purity.

Tandem-type Pd(ii)-catalyzed oxidative Heck reaction/intramolecular C-H amidation sequence: A novel route to 4-aryl-2-quinolinones

Inamoto, Kiyofumi,Kawasaki, Junpei,Hiroya, Kou,Kondo, Yoshinori,Doi, Takayuki

, p. 4332 - 4334 (2012/05/20)

A novel catalytic method for synthesizing 4-aryl-2-quinolinones is reported. The process involves two mechanistically independent, sequential Pd(ii)-catalyzed reactions - the oxidative Heck reaction and the intramolecular C-H amidation - both of which smoothly proceed in the presence of a single catalytic system in a one-pot manner. The Royal Society of Chemistry 2012.

Radical cyclizations of conjugated esters and amides with 3-oxopropanenitriles mediated by manganese(III) acetate

Yilmaz, E. Vildan Burgaz,Yilmaz, Mehmet,Oektemer, Atilla

, p. 363 - 376 (2011/09/20)

Radical cyclizations of conjugated esters and amides with 3-oxopropanenitriles in presence of manganese(III) acetate produced ethyl 4-cyano-2,3-dihydrofuran-3-carboxylates and 4-cyano-2,3-dihydrofuran-3- carboxamides in good yields. The radical cyclizations of conjugated amides gave 2,3-dihydrofurans in better yields than that of conjugated esters. Moreover, the reactions of thienyl substituted amides and esters with 3-oxopropanenitriles afforded 2,3-dihydrofurans more efficiently than phenyl substituted ones. ARKAT-USA, Inc.

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