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78823-42-4

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78823-42-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 78823-42-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,8,2 and 3 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 78823-42:
(7*7)+(6*8)+(5*8)+(4*2)+(3*3)+(2*4)+(1*2)=164
164 % 10 = 4
So 78823-42-4 is a valid CAS Registry Number.

78823-42-4Downstream Products

78823-42-4Relevant articles and documents

Cobalt carbonyl as an effective CO source in one-pot synthesis of esters from aryl halides

Baburajan,Senthilkumaran,Elango, Kuppanagounder P.

, p. 3050 - 3056 (2013/10/01)

For the first time, we have successfully applied Co2(CO) 8 as an effective carbonyl source for the Pd catalysed alkoxycarbonylation of aryl halides affording the corresponding aryl esters under mild microwave conditions. A wide variety of esters and carbonyl derivatives were prepared using this protocol.

Bis(cyclopentadienyldicarbonyliron) as a convenient carbon monoxide source in palladium-catalyzed carbonylative coupling of aryl iodides with amines, alcohols, and thiols

Nakaya, Ryotaro,Yorimitsu, Hideki,Oshima, Koichiro

experimental part, p. 904 - 906 (2011/12/05)

Bis(cyclopentadienyldicarbonyliron) ([CpFe(CO)2]2) serves as a carbon monoxide source in carbonylative coupling reactions. Treatment of aryl iodides with primary amines in the presence of DBU and [CpFe(CO)2]2 under palladium catalysis provides the corresponding benzamides in good yields. Similar reactions with phenols and thiols provide the corresponding benzoate esters and thioesters, respectively. A catalytic amount of DMAP as an additive promoted the carbonylative coupling reactions with primary alcohol and secondary amine.

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