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42291-06-5

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42291-06-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 42291-06-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,2,9 and 1 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 42291-06:
(7*4)+(6*2)+(5*2)+(4*9)+(3*1)+(2*0)+(1*6)=95
95 % 10 = 5
So 42291-06-5 is a valid CAS Registry Number.

42291-06-5Relevant articles and documents

Process for producing optically active 3,3,3-Trifluoro-2-Hydroxy-2-Methylpropionic acid, and salt thereof

-

, (2008/06/13)

There are disclosed are a diastereomer salt of formula (1): a process for producing the same, a process for producing optically active 3,3,3-trifluoro-2-hydroxy-2-methylpropionic acid of formula (2′): a novel optically active amine compound of formula (4): a novel optically active amine compound of formula (8): an imine compound of formula (7) or (11):

Regiochemistry on Photoamination of Stilbene Derivatives with Ammonia via Electron Transfer

Yasuda, Masahide,Isami, Toshihiro,Kubo, Jun-ichi,Mizutani, Manabu,Yamashita, Toshiaki,et al.

, p. 1351 - 1354 (2007/10/02)

The regiochemistry of photoamination of 1,2-diarylethene (1) with ammonia in the presence of p-dicyanobenzene (DCNB) has been investigated.The photoamination of stilbene and p,p'-dimethoxystilbene gave 1-amino-1,2-diphenylethane and 1-amino-1,2-bis(p-methoxyphenyl)ethane, respectively.The photoamination of unsymmetric 1-aryl-2-phenylethene having an alkoxy group on the para position occurred selectively to give 1-amino-2-aryl-1-phenylethane.On the other hand, the photoamination of 1-aryl-2-phenylethene having a methyl and chloro group on the para position or methoxy group on the meta and ortho positions gave both 1-amino-2-aryl-1-phenylethane and 1-amino-1-aryl-2-phenylethane.The regiochemistry is related with the distribution of positive charge in the cation radicals of 1 generated from photochemical electron transfer to DCNB.

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