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15563-54-9

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15563-54-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 15563-54-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,5,6 and 3 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 15563-54:
(7*1)+(6*5)+(5*5)+(4*6)+(3*3)+(2*5)+(1*4)=109
109 % 10 = 9
So 15563-54-9 is a valid CAS Registry Number.

15563-54-9Relevant articles and documents

Synthesis of N -acyl- N, O -acetals mediated by titanium ethoxide

Li, Min,Luo, Bingling,Liu, Qi,Hu, Yumin,Ganesan,Huang, Peng,Wen, Shijun

supporting information, p. 10 - 13 (2014/01/23)

N-Acyl-N,O-acetals are present in a number of bioactive natural products, and this unusual functional group can act as a synthetic precursor to unstable reactive N-acylimines. In this paper, a variety of N-acyl-O-ethyl-N,O-acetals was concisely prepared under mild conditions mediated by titanium ethoxide (Ti(OEt)4). The method also offers a new strategy to make other O-alkyl-N,O-acetals. Furthermore, this strategy was extended to the synthesis of an analogue of the natural product turtschamide.

N-amides, Versatile Amidoalkylation Reagents. 5. A General and Convenient Route to N-(α-Alkoxyalkyl)amides

Katritzky, Alan R.,Fan, Wei-Qiang,Black, Michael,Pernak, Juliusz

, p. 547 - 549 (2007/10/02)

N-amides 2, easily prepared from benzotriazole 1, an aldehyde, and an amide, react readily with a variety of primary and secondary alcohols under mild conditions to give N-(α-alkoxyalkyl)amides 3 in good yield.

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