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α-Phenyl-α-chlor-essigsaeure-aethylamid, also known as α-phenyl-α-chloroacetoacetonitrile, is an organic compound with the chemical formula C10H10ClNO. It is a derivative of acetoacetonitrile, featuring a phenyl group and a chloro substituent on the α-carbon. α-Phenyl-α-chlor-essigsaeure-aethylamid is a colorless to pale yellow liquid and is used as an intermediate in the synthesis of various pharmaceuticals and agrochemicals. It is typically prepared through the reaction of phenylmagnesium bromide with chloroacetoacetic acid, followed by the addition of hydroxylamine to form the corresponding oxime, which is then converted to the desired compound. Due to its reactivity and potential use in the production of active ingredients, α-phenyl-α-chlor-essigsaeure-aethylamid is an important building block in the chemical industry.

78899-97-5

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78899-97-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 78899-97-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,8,9 and 9 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 78899-97:
(7*7)+(6*8)+(5*8)+(4*9)+(3*9)+(2*9)+(1*7)=225
225 % 10 = 5
So 78899-97-5 is a valid CAS Registry Number.

78899-97-5Relevant academic research and scientific papers

Reaction of lithium trimethylsilyldiazomethanide with ketenimines bearing electron-withdrawing groups

Aoyama,Nakano,Marumo,Uno,Shioiri

, p. 1163 - 1167 (2007/10/02)

Ketenimines bearing electron-withdrawing groups (X in 1) at the C2-position react with lithium trimethylsilyldiazomethanide [diazo(lithio)trimethylsilylmethane] to give 4-amino-3-trimethylsilylpyrazoles 4 or 5 mainly; in some cases 4-trimethylsilyl-1,2,3-triazole derivatives 3 were formed as the major products.

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