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87243-31-0

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87243-31-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87243-31-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,2,4 and 3 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 87243-31:
(7*8)+(6*7)+(5*2)+(4*4)+(3*3)+(2*3)+(1*1)=140
140 % 10 = 0
So 87243-31-0 is a valid CAS Registry Number.

87243-31-0Downstream Products

87243-31-0Relevant articles and documents

Copper-catalyzed direct N-arylation of naphthalimides using diaryliodonium Salts

Mao, Song,Guo, Fenglou,Li, Juan,Geng, Xu,Yu, Jianjun,Han, Jianwei,Wang, Limin

, p. 1959 - 1962 (2013/09/24)

An effective copper-catalyzed N-arylation of naphthal-imides with diaryliodonium salts in toluene at 100 °C has been developed. This cross-coupling reaction gives the desired N-arylated 1,8-naphthalimides in moderate to good yields. The synthetic potentia

N-SUBSTITUTED ISONAPHTHALIMIDES. FORMATION AND REACTION WITH AMINES

Ganin, E. V.,Makarov, V. F.,Nikitin, V. I.

, p. 2209 - 2215 (2007/10/02)

N-Substituted isonaphthalimides and N-substituted naphthalimides, as considered previously, are formed in the reaction of 1,8-naphthaloyl chloride with primary amines.The reaction of N-substituted isonaphthalimides with sterically unhindered amines leads to the N,N'-substituted diamides of 1,8-naphthalenedicarboxylic acid.In the case of sterically hindered amines it results in isomerization to the N-substituted naphthalimides.The thermolysis of the N,N'-substituted diamides of 1,8-naphthalenedicarboxylic acid leads to amines and N-substituted naphthalimides.

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