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11-[(tert-butyldiphenylsilyl)oxy]-1-(trimethylsilyl)undec-1-yne is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

857507-52-9

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857507-52-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 857507-52-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,5,0 and 7 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 857507-52:
(8*8)+(7*5)+(6*7)+(5*5)+(4*0)+(3*7)+(2*5)+(1*2)=199
199 % 10 = 9
So 857507-52-9 is a valid CAS Registry Number.

857507-52-9Relevant academic research and scientific papers

Silver(I)-catalysed protiodesilylation of 1-(Trimethylsilyl)-1-alkynes

Carpita, Adriano,Mannocci, Luca,Rossi, Renzo

, p. 1859 - 1864 (2007/10/03)

A procedure for protiodesilylation of 1-(trimethylsilyl)-1-alkynes that involves the use of catalytic amounts of AgNO3 and does not require the employment of KCN is described. This procedure allows for chemoselective deprotection of 1-(trimethylsilyl)-1-alkynes containing α-(trimethylsilyl) benzyl moieties, tert-butyldiphenylsilyl alkyl ethers or tert-butyldimethylsilyl aryl ether groups. However, it causes complete desilylation of l-(trimethylsilyl)-1-alkynes characterised by a primary alcoholic group protected as a tert-butyldimethylsilyl ether. Interestingly, compounds that contain this last functional group can also furnish the corresponding alcohols by treatment with a catalytic amount of aqueous HNO3. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005.

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