A novel and efficient tandem protocol for the swift synthesis of dihydrobenzo[]indenocarbazole frameworks from 2-alkynylanilines and 2-alkynylbenzaldehydes via BF·OEt-facilitated benzannulation and Friedel-Crafts reaction has been described. This innovative approach accommodates a wide array of functional groups, offering a myriad of diversified carbazole products. Later, postsynthetic modification leads to its C(sp)-H hydroxylation. Furthermore, the photophysical properties of some selected synthesized moieties have been meticulously investigated, promising exciting avenues for further exploration.

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http://dx.doi.org/10.1021/acs.joc.4c01245DOI Listing

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A novel and efficient tandem protocol for the swift synthesis of dihydrobenzo[]indenocarbazole frameworks from 2-alkynylanilines and 2-alkynylbenzaldehydes via BF·OEt-facilitated benzannulation and Friedel-Crafts reaction has been described. This innovative approach accommodates a wide array of functional groups, offering a myriad of diversified carbazole products. Later, postsynthetic modification leads to its C(sp)-H hydroxylation.

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J Org Chem

December 2021

Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Okayama University of Science, 1-1 Ridai-cho, Kita-ku, Okayama 700-0005, Japan.

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