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1190208-79-7

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1190208-79-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1190208-79-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,9,0,2,0 and 8 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1190208-79:
(9*1)+(8*1)+(7*9)+(6*0)+(5*2)+(4*0)+(3*8)+(2*7)+(1*9)=137
137 % 10 = 7
So 1190208-79-7 is a valid CAS Registry Number.

1190208-79-7Downstream Products

1190208-79-7Relevant articles and documents

Asymmetric synthesis of cyclic α-amino acid derivatives by the intramolecular reaction of magnesium carbenoid with an N-magnesio arylamine

Mitsunaga, Shintaro,Ohbayashi, Tohru,Sugiyama, Shimpei,Saitou, Takahito,Tadokoro, Makoto,Satoh, Tsuyoshi

experimental part, p. 1697 - 1708 (2009/12/06)

The synthesis of pipecolic acid and homopipecolic acid derivatives was developed from ω-(2-aminophenyl)-1-chloroalkyl p-tolyl sulfoxides by treatment with i-PrMgCl. An intramolecular nucleophilic substitution reaction of a magnesium carbenoid with an N-magnesio arylamine is the key step of this reaction. Proline and pipecolic acid derivatives were also synthesized from ω-(arylamino)-1-chloroalkyl p-tolyl sulfoxides by the same chemistry. Starting from enantiomerically pure (1S,RS)-1-chloro-3-[2-(N-methylamino)phenyl]propyl p-tolyl sulfoxide, enantiomerically pure (R)-pipecolic acid derivative was obtained. The intramolecular nucleophilic substitution reaction of the magnesium carbenoid with N-magnesio arylamine was proven to take place with inversion of the carbenoid carbon. The stereochemistry of these reactions is also discussed.

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