Reactions of poly(methoxycarbonyl)-substituted cycloheptatrien-1-yl- and (N-mesylaminoethenyl)cyclopentadienyl anions with some aromatic cations

Add time:08/27/2019    Source:sciencedirect.com

A new original route for the construction of cage structures containing seven electron-withdrawing groups in a molecule is reported. This method is based on the reaction of stable organic cations with a cycloheptatrienyl anion totally substituted with methoxycarbonyl groups. After the formation of a C–C bond between two different carbocycles, some further transformations take place to give cage structures. Reactions of the same cations with N-mesyl-Z-1-[1,2-bis(methoxycarbonyl)-2-(methoxycarbonylamino)ethen-1-yl]-2,3,4,5-tetrakis(methoxycarbonyl)cyclopentadienyl anion affording novel organic salts were also studied.

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