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1418645-60-9

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1418645-60-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1418645-60-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,1,8,6,4 and 5 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1418645-60:
(9*1)+(8*4)+(7*1)+(6*8)+(5*6)+(4*4)+(3*5)+(2*6)+(1*0)=169
169 % 10 = 9
So 1418645-60-9 is a valid CAS Registry Number.

1418645-60-9Downstream Products

1418645-60-9Relevant articles and documents

Enantioselective inclusion of amide guests into a chiral N,N′-ditrityl amino amide host to compensate the loss of hydrogen bonds broken by installation of trityl groups

Megumi, Ken,Yokota, Shohei,Matsumoto, Shoji,Akazome, Motohiro

, p. 707 - 710 (2013/02/23)

A new crystalline N,N′-ditrityl amino amide host included several amide guests in the host cavity to form inclusion crystals. Although the installation of trityl groups into (S)-2-aminopropanamide broke its inherent hydrogen bonds of amide groups, inclusion of guest amides compensated the loss of hydrogen bonds. X-ray crystallography showed that these inclusion cavities and host-guest interactions such as hydrogen bonds, van der Waals interaction, and CH?O interactions play important roles for highly enantioselective inclusion. The enantiomeric inclusion was 67% ee (S-form) for N-phenyl 2-methylbutanamide, 82% ee (S-form) for N-phenyl 2-chlorobutanamide, and 83% ee (S-form) for N-phenyl 2-bromobutanamide.

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