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842169-80-6

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842169-80-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 842169-80-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,2,1,6 and 9 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 842169-80:
(8*8)+(7*4)+(6*2)+(5*1)+(4*6)+(3*9)+(2*8)+(1*0)=176
176 % 10 = 6
So 842169-80-6 is a valid CAS Registry Number.

842169-80-6Relevant articles and documents

Tertiary amine compound, bisphosphine ligand, and intermediate and preparation method of tertiary amine compound

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Paragraph 0232; 0236-0239; 0240; 0250-0252, (2019/11/20)

The invention discloses a tertiary amine compound, a bisphosphine ligand, and an intermediate and a preparation method of the tertiary amine compound, and provides a tertiary amine compound preparation method, which comprises: under the protection of a ga

Enantioselective Friedel–Crafts Alkylation Reaction of Heteroarenes with N-Unprotected Trifluoromethyl Ketimines by Means of Chiral Phosphoric Acid

Miyagawa, Masamichi,Yoshida, Masaru,Kiyota, Yuki,Akiyama, Takahiko

supporting information, p. 5677 - 5681 (2019/04/03)

An enantioselective Friedel–Crafts alkylation reaction of pyrroles and indoles with N-unprotected trifluoromethyl ketimines by use of chiral phosphoric acid provided α-trifluoromethylated primary amines bearing chiral tetrasubstituted carbon centers in high yields and with high to excellent enantioselectivities. The present reaction is unique to N-unprotected trifluoromethyl ketimines. No reaction took place with N-p-methoxyphenyl (PMP)-substituted ketimine. Corresponding α-trifluoromethylated amines were transformed without loss of enantioselectivity.

Unprecedented catalytic asymmetric reduction of N-H imines

Gosselin, Francis,O'Shea, Paul D.,Roy, Stephanie,Reamer, Robert A.,Chen, Cheng-Yi,Volante, Ralph P.

, p. 355 - 358 (2007/10/03)

(Chemical Equation Presented) Addition of lithium bis(trimethylsilyl)amide to perfluorinated ketones 1a-j affords (E)-N-TMS-ketimines 2a-j that are reduced in situ to afford racemic perfluoromethylated amine hydrochloride salts 3a-j in 54-97% yields. Solv

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