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Benzenepropanenitrile, a-(trimethylsilyl)-a-[(trimethylsilyl)oxy]-, also known as 3-(Trimethylsilyl)propiononitrile or TMS-protected propiononitrile, is a chemical compound with the molecular formula C8H17NSi2. It is a colorless liquid that is soluble in organic solvents. Benzenepropanenitrile, a-(trimethylsilyl)-a-[(trimethylsilyl)oxy]- is a derivative of benzenepropanenitrile, where the alpha-hydroxyl group is protected by two trimethylsilyl groups. It is commonly used as a protecting group in organic synthesis, particularly in the preparation of nitriles and amides, to prevent unwanted side reactions. The compound is also known for its stability and ease of removal under mild conditions, making it a valuable tool in the synthesis of complex organic molecules.

138754-38-8

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138754-38-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138754-38-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,7,5 and 4 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 138754-38:
(8*1)+(7*3)+(6*8)+(5*7)+(4*5)+(3*4)+(2*3)+(1*8)=158
158 % 10 = 8
So 138754-38-8 is a valid CAS Registry Number.

138754-38-8Relevant academic research and scientific papers

On The Metalation-Silylation of O-Trimethylsilyl Aldehyde Cyanohydrins

Cunico, Robert F.,Kuan, Chia P.

, p. 1202 - 1205 (2007/10/02)

The metalation-trimethylsilylation of O-trimethylsilyl (saturated) aldehyde cyanohydrins was achieved by in situ treatment with LDA and trimethylchlorosilane at -78 deg C.C-Silyl products (O-trimethylsilyl acylsilane cyanohydrins) generally predominated, but N-silyl derivatives (ketenimines) were found in some instances.LDA could be added across the C=N bond of the latter.The metalation-trimethylsilylation o O-trimethylsilyl benzaldehyde cyanohydrin could only be effected if 2 equiv of trimethylchlorosilane were employed per equivalent of cyanohydrin anion.

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