Porphyrin Catecholate Iron-Based Metal-Organic Framework for Efficient Visible Light-Promoted One-Pot Tandem C-C Couplings

Introduction of metal-organic frameworks (MOFs) beyond metal-carboxylate series and their applications are still challenging. An innovative porous porphyrin catecholate iron-based MOF (PorphCat-Fe) with a Brunauer-Emmett-Teller (BET) surface area of 700 m2 g-1 has been designed and synthesized through solvothermal self-assembling porphyrin catecholate linkers and iron(II) chloride as a cheap and earth-abundant node precursor. The structure was then evaluated with various techniques and utilized as an efficient and stable heterogeneous material for domino one-pot selective benzyl alcohol oxidation/Knoevenagel condensation reaction under visible LED light irradiation. The photocatalytic performance was remarkably improved as compared to individual components, affording excellent product yields (91%) with almost quantitative transformation of benzyl alcohol. The combination of Fe(III)-Lewis acidic sites and free-base porphyrin photosensitizers within the porous solid material make PorphCat-Fe able to show superior catalytic activity for this transformation. In addition, the MOF can easily accommodate the starting materials inside its mesopores and, thereby, make them easily accessible to active sites. This is an unusual example of an all-in-one noble metal-free bio-inspired supramolecular chemistry for an advanced organic transformation without the need of any chemical additive or further structural modification using only visible LED light conservation. © 2022 The Authors. Published by American Chemical Society.

Авторы
Daliran S.1 , Khajeh M.1 , Oveisi A.R.1 , García H.2 , Luque R. 3, 4
Издательство
American Chemical Society
Номер выпуска
16
Язык
Английский
Страницы
5315-5322
Статус
Опубликовано
Том
10
Год
2022
Организации
  • 1 Department Of Chemistry, University Of Zabol, P.O. Box: 98615-538, Zabol, 9861335856, Iran
  • 2 Departamento De Química, Instituto De Tecnología Química CSIC-UPV, Universitat Politècnica De València, Av. de los Naranjos s/n, Valencia, 46022, Spain
  • 3 Departamento De Química Orgánica, Universidad De Córdoba, Campus De Rabanales, Edificio Marie Curie (C-3), Ctra Nnal IV-A, Km 396, Cordoba, E14014, Spain
  • 4 Peoples Friendship University Of Russia (RUDN University), 6 Miklukho-Maklaya Str., Moscow, 117198, Russian Federation
Ключевые слова
cascade reaction; catechol linker; Fe-based MOF; Knoevenagel reaction; mesoporous materials; metal-organic frameworks; multifunctional catalyst; photo-oxidation; porphyrin
Дата создания
06.07.2022
Дата изменения
06.07.2022
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/83666/
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