Synlett 2021; 32(03): 304-308
DOI: 10.1055/a-1277-3995
letter

Sulfonated Tetraphenylethylene-Based Hypercrosslinked Polymer as a Heterogeneous Catalyst for the Synthesis of Symmetrical Triarylmethanes via a Dual C–C Bond-Cleaving Path

Gitumoni Kalita
,
Namrata Deka
,
Dipankar Paul
,
Loknath Thapa
,
Gitish K. Dutta
,
Department of Chemistry, National Institute of Technology Meghalaya, Bijni Complex, Laitumkhrah, Shillong 793003, Meghalaya, India
› Institutsangaben
The Science and Engineering Research Board (SERB, Grants SB/FT/CS-075/2014 and SB/FT/CS-115/2014) is gratefully acknowledged for financial support to G.K.D. and P.N.C. We also thank NIT Meghalaya for financial support to G.K., N.D., and D.P. SAIF, NEHU.


Abstract

A sulfonic acid functionalized tetraphenylethylene-based hypercrosslinked polymer (THP-SO3H) with a well-developed porous network and accessible sulfonic acid sites was synthesized and characterized by different analytical techniques. The catalytic prowess of the synthesized material THP-SO3H was investigated in a challenging dual C–C bond-breaking reaction for the synthesis of symmetrical triarylmethanes (TRAMs) in high yield. The scope of the developed metal-free method was also explored with a wide variety of substrates. The organocatalyst can be easily recovered by filtration and reused up to five consecutive cycles without substantial loss in its catalytic efficacy.

Supporting Information



Publikationsverlauf

Eingereicht: 12. Juli 2020

Angenommen nach Revision: 01. Oktober 2020

Accepted Manuscript online:
01. Oktober 2020

Artikel online veröffentlicht:
27. November 2020

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