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42577-03-7

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42577-03-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 42577-03-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,5,7 and 7 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 42577-03:
(7*4)+(6*2)+(5*5)+(4*7)+(3*7)+(2*0)+(1*3)=117
117 % 10 = 7
So 42577-03-7 is a valid CAS Registry Number.

42577-03-7Downstream Products

42577-03-7Relevant articles and documents

N-Formylation of amines by methanol activation

Ortega, Nuria,Richter, Christian,Glorius, Frank

, p. 1776 - 1779 (2013)

The homogeneous catalyzed dehydrogenation of methanol in a synthetically valuable cross-coupling reaction was achieved. By the use of a simple ruthenium-N-heterocyclic carbene complex, MeOH and primary or secondary amines can be converted into formamides.

Rh(I)-Catalyzed Hydroamidation of Olefins via Selective Activation of N-H Bonds in Aliphatic Amines

Dong, Kaiwu,Fang, Xianjie,Jackstell, Ralf,Laurenczy, Gabor,Li, Yuehui,Beller, Matthias

supporting information, p. 6053 - 6058 (2015/05/27)

Hydroamidation of olefins constitutes an ideal, atom-efficient method to prepare carboxylic amides from easily available olefins, CO, and amines. So far, aliphatic amines are not suitable for these transformations. Here, we present a ligand- and additive-free Rh(I) catalyst as solution to this problem. Various amides are obtained in good yields and excellent regioselectivities. Notably, chemoselective amidation of aliphatic amines takes place in the presence of aromatic amines and alcohols. Mechanistic studies reveal the presence of Rh-acyl species as crucial intermediates for the selectivity and rate-limiting step in the proposed Rh(I)-catalytic cycle. (Chemical Formula Presented).

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