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1327339-67-2

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1327339-67-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1327339-67-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,2,7,3,3 and 9 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1327339-67:
(9*1)+(8*3)+(7*2)+(6*7)+(5*3)+(4*3)+(3*9)+(2*6)+(1*7)=162
162 % 10 = 2
So 1327339-67-2 is a valid CAS Registry Number.

1327339-67-2Relevant articles and documents

Sequential Michael addition/retro-Claisen condensation of 1,3-diarylpropan-1,3-diones with nitrostyrenes: one-step synthesis of 4-nitro-1,3-diarylbutan-1-ones

Li, Zheng,Lu, Hao,Liu, Zhenrong,Ma, Xiaolong

, (2019/03/29)

Abstract : The sequential Michael addition/retro-Claisen condensation of 1,3-diarylpropan-1,3-diones with nitrostyrenes is described. 4-Nitro-1,3-diarylbutan-1-ones were efficiently synthesized in good to high yield under mild, transition-metal-free condition. This one-step method involving sequential carbon-carbon bond formation and cleavage provides a good alternative to the synthesis of various γ-nitro ketones. Graphical abstract: The sequential Michael addition/retro-Claisen condensation of 1,3-diarylpropan-1,3-diones with nitrostyrenes is described. 4-Nitro-1,3-diarylbutan-1-ones were efficiently synthesized in good to high yield under mild and transition-metal-free condition. [Figure not available: see fulltext.].

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