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287398-43-0

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287398-43-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 287398-43-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,7,3,9 and 8 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 287398-43:
(8*2)+(7*8)+(6*7)+(5*3)+(4*9)+(3*8)+(2*4)+(1*3)=200
200 % 10 = 0
So 287398-43-0 is a valid CAS Registry Number.

287398-43-0Downstream Products

287398-43-0Relevant articles and documents

Multiple Cycloadditive macrocyclization: An Efficient Method for Crown Ether-Type Cyclophanes, Bis-Calix[4]arenes and Silamacrocycles

Kim, Byeang Hyean,Jeong, Eun Jeong,Hwang, Gil Tae,Venkatesan, Natarajan

, p. 2191 - 2202 (2001)

Macrocycles constitute a broad spectrum of compounds, which play a significant role in host-guest supramolecular chemistry. We have rationally designed an efficient novel synthetic method to synthesize different types of artificial receptive macrocycles containing isoxazoline or isoxazole ring systems. This method involves multiple (double, triple or quadrupole) cycloadditions between bifunctional dipoles and bifunctional dipolarophiles. We have presented our synthetic results to show the ease with which this one-pot synthetic method can be extended to synthesize different types of macrocycles such as cyclophanes, bis-calix[4]arenes and silamacrocycles. Hence, with appropriate combination of bifunctional dipoles and bifunctional dipolarophiles, the ring size of macrocycles could be controlled. This multiple cycloadditive macrocyclization will be a useful arsenal for the synthesis of various macrocycles.

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