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102181-30-6

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102181-30-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 102181-30-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,2,1,8 and 1 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 102181-30:
(8*1)+(7*0)+(6*2)+(5*1)+(4*8)+(3*1)+(2*3)+(1*0)=66
66 % 10 = 6
So 102181-30-6 is a valid CAS Registry Number.

102181-30-6Relevant articles and documents

Direct synthesis of amides from carboxylic acids and amines using B(OCH2CF3)3

Lanigan, Rachel M.,Starkov, Pavel,Sheppard, Tom D.

, p. 4512 - 4523 (2013/06/05)

B(OCH2CF3)3, prepared from readily available B2O3 and 2,2,2-trifluoroethanol, is as an effective reagent for the direct amidation of a variety of carboxylic acids with a broad range of amines. In most cases, the amide products can be purified by a simple filtration procedure using commercially available resins, with no need for aqueous workup or chromatography. The amidation of N-protected amino acids with both primary and secondary amines proceeds effectively, with very low levels of racemization. B(OCH2CF3)3 can also be used for the formylation of a range of amines in good to excellent yield, via transamidation of dimethylformamide.

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