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1244044-99-2

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1244044-99-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1244044-99-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,4,0,4 and 4 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1244044-99:
(9*1)+(8*2)+(7*4)+(6*4)+(5*0)+(4*4)+(3*4)+(2*9)+(1*9)=132
132 % 10 = 2
So 1244044-99-2 is a valid CAS Registry Number.

1244044-99-2Downstream Products

1244044-99-2Relevant articles and documents

Controlled and chemoselective reduction of secondary amides

Pelletier, Guillaume,Bechara, William S.,Charette, Andre B.

supporting information; experimental part, p. 12817 - 12819 (2010/11/05)

This communication describes a metal-free methodology involving an efficient and controlled reduction of secondary amides to imines, aldehydes, and amines in good to excellent yields under ambient pressure and temperature. The process includes a chemoselective activation of a secondary amide with triflic anhydride in the presence of 2-fluoropyridine. The electrophilic activated amide can then be reduced to the corresponding iminium using triethylsilane, a cheap, rather inert, and commercially available reagent. Imines can be isolated after a basic workup or readily transformed to the aldehydes following an acidic workup. The amine moiety can be accessed via a sequential reductive amination by the addition of silane and Hantzsch ester hydride in a one-pot reaction. Moreover, this reduction tolerates various functional groups that are usually reactive under reductive conditions and is very selective to secondary amides.

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