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68820-71-3

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68820-71-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 68820-71-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,8,2 and 0 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 68820-71:
(7*6)+(6*8)+(5*8)+(4*2)+(3*0)+(2*7)+(1*1)=153
153 % 10 = 3
So 68820-71-3 is a valid CAS Registry Number.

68820-71-3Downstream Products

68820-71-3Relevant articles and documents

Nucleophilic trifluoromethylation of aziridinyl ketones: A convenient access to fluorinated aziridinyl alcohols

Mlostoń, Grzegorz,Obijalska, Emilia,Zi?bacz, Paulina,Matyszewski, Krzysztof,Urbaniak, Katarzyna,Linden, Anthony,Heimgartner, Heinz

, p. 192 - 197 (2013)

A convenient synthesis of α-(aziridin-2-yl)-α-(trifluoromethyl) alcohols starting with ethyl aziridine-2-carboxylates is reported. Grignard reaction with the corresponding Weinreb amides led to aziridin-2-yl ketones, and subsequent treatment with Ruppert-Prakash reagent gave the trimethylsilylated target compounds as mixtures of diastereoisomers, which were desilylated with TBAF. In the case of ethyl 1-((S)-1-phenylethyl)aziridine-2-carboxylate, (S,S)- and (S,R)-aziridin-2-yl ketones were obtained, separated chromatographically and transformed into the desired enantiomerically pure α-trifluoromethylated alcohols.

A new synthesis of aziridine-2-carboxylates by reaction of hexahydro-1,3,5-triazines with alkyldiazoacetates in the presence of tin(IV) chloride

Ha, Hyun-Joon,Kang, Kyung-Ho,Suh, Jang-Min,Ahn, Young-Gil

, p. 7069 - 7070 (2007/10/03)

Aziridine-2-carboxylates were prepared from the reaction of hexahydro-1,3,5-triazines with alkyldiazoacetates in the presence of Lewis acid catalyst in high yield.

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