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L-Allothreonine,4,4-difluoro-(9CI) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

438477-05-5

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438477-05-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 438477-05-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,8,4,7 and 7 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 438477-05:
(8*4)+(7*3)+(6*8)+(5*4)+(4*7)+(3*7)+(2*0)+(1*5)=175
175 % 10 = 5
So 438477-05-5 is a valid CAS Registry Number.

438477-05-5Downstream Products

438477-05-5Relevant academic research and scientific papers

Stereoselective synthesis of anti-α-(difluoromethyl)-β-amino alcohols by boronic acid based three-component condensation. Stereoselective preparation of (2S,3R)-difluorothreonine

Prakash, G. K. Surya,Mandal, Mihirbaran,Schweizer, Stefan,Petasis, Nicos A.,Olah, George A.

, p. 3718 - 3723 (2002)

Starting from optically active 3,3-difluorolactaldehyde, an alkenyl or aryl boronic acid, and an amine, a one-step three-component methodology was developed for the stereoselective preparation of anti-α-(difluoromethyl)-β-amino alcohols. β-Furyl-substituted anti-α-(difiuoromethyl)-β-amino alcohol was further elaborated to form (2S,3R)-difluorothreonine in high yield and ee.

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