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Synthesis of biological based hennotannic acid-based salts over porous bismuth coordination polymer with phosphorous acid tags†
Saeed Babaee,Mahmoud Zarei,Mohammad Ali Zolfigol,Sadegh Khazalpour,Masoumeh Hasani,Uwe Rinner,Romana Schirhagl,Neda Norouzi,Sadegh Rostamnia
RSC Advances Pub Date : 01/07/2021 00:00:00 , DOI:10.1039/D0RA06674E
Abstract

In this paper, a novel porous polymer capable of coordinating to bismuth (PCPs-Bi) was synthesized. The Bi-PCPs was then reacted with phosphorous acid to produce a novel polymer PCPs(Bi)N(CH2PO3H2)2 which is shown to act as an efficient and recyclable catalyst. The mentioned catalyst was applied for the efficient synthesis of new mono and bis naphthoquinone-based salts of piperidine and/or piperazine via the reaction of hennotannic acid with various aldehydes, piperidine and/or piperazine, respectively. The structure of the resulting mono and bis substituted piperazine or piperidine-based naphthoquinone salts was thoroughly characterized spectroscopically. The electrochemical behavior of the products was also investigated. The presented protocol has the advantages of excellent yields (82–95%), short reaction times (4–30 min) and simple work-up.

Graphical abstract: Synthesis of biological based hennotannic acid-based salts over porous bismuth coordination polymer with phosphorous acid tags
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