TfOH catalyzed synthesis of 9-arylfluorenes via tandem reaction under warm and efficient conditions?
RSC Advances Pub Date: 2014-06-12 DOI: 10.1039/C4RA03126A
Abstract
A tandem ring-closing reaction was developed for the synthesis of 9-arylfluorenes and their derivatives. The reaction is metal-free, straightforward and efficient under warm conditions. More than 99% yield is obtained.
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Journal Name：RSC Advances
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CAS no.: 89640-58-4
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