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142944-48-7

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142944-48-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 142944-48-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,9,4 and 4 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 142944-48:
(8*1)+(7*4)+(6*2)+(5*9)+(4*4)+(3*4)+(2*4)+(1*8)=137
137 % 10 = 7
So 142944-48-7 is a valid CAS Registry Number.

142944-48-7Relevant articles and documents

Efficient copper-catalyzed cross-coupling of 1-Boc-piperazine with aryl iodides and its application in the synthesis of trazodone

Yong, Fui-Fong,Teo, Yong-Chua,Tan, Khee-Ngiap

supporting information, p. 5332 - 5334 (2013/09/12)

A convenient and practical strategy is developed for the cross-coupling of N-Boc protected piperazines with aryl iodides using CuBr/1,1′-bi-2- naphthol as the catalyst and K3PO4 as the base. The protocol affords N-arylated piperazine products in moderate to good yields under the optimized conditions. The application of this catalytic system to the synthesis of trazodone is also successfully demonstrated using commercially available substrates.

[(3-Chlorophenyl)piperazinylpropyl]pyridazinones and analogues as potent antinociceptive agents

Giovannoni, Maria Paola,Vergelli, Claudia,Ghelardini, Carla,Galeotti, Nicoletta,Bartolini, Alessandro,Dal Piaz, Vittorio

, p. 1055 - 1059 (2007/10/03)

A number of [(3-chlorophenyl)piperazinylpropyl]pyridazinones and the corresponding isoxazolopyridazinones, showing the arylpiperazinyl substructure present in very potent antinociceptive agents reported in the literature, were synthesized and tested for t

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