1
|
Serrano JL, Gaware S, Pérez JA, Pérez J, Lozano P, Kori S, Dandela R, Sanghvi YS, Kapdi AR. Quadrol-Pd(II) complexes: phosphine-free precatalysts for the room-temperature Suzuki-Miyaura synthesis of nucleoside analogues in aqueous media. Dalton Trans 2022; 51:2370-2384. [PMID: 35043803 DOI: 10.1039/d1dt03778a] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Commercially available Quadrol, N,N,N',N'-tetrakis(2-hydroxypropyl)ethylenediamine (THPEN), has been used for the first time as a N^N-donor neutral hydrophilic ligand in the synthesis and characterization of new water soluble palladium(II) complexes containing chloride, phthalimidate or saccharinate as co-ligands. [PdCl2(THPEN)] (1) [Pd(phthal)2(THPEN)] (2), [Pd(sacc)2(THPEN)] (3) and the analogous complex with the closely related N,N,N',N'-tetrakis(2-hydroxyethyl)ethylenediamine (THEEN) [Pd(sacc)2(THEEN)] (4) were efficiently prepared in a one-pot reaction from [PdCl2(CH3CN)2] or Pd(OAc)2. Structural characterization of 1 and 3 by single crystal X-ray diffraction produced the first structures reported to date of palladium complexes with Quadrol. The resultant palladium complexes are highly soluble in water and were found to be effective as phosphine-free catalysts for the synthesis of functionalized nucleoside analogues under room-temperature Suzuki-Miyaura cross-coupling conditions between 5-iodo-2'-deoxyuridine (& 5-iodo-2'-deoxycytidine) with different aryl boronic acids in neat water. This is the first report of the coupling process performed on nucleosides in water at room temperature.
Collapse
Affiliation(s)
- José Luis Serrano
- Departamento de Ingeniería Química y Ambiental. Área de Química Inorgánica, Universidad Politécnica de Cartagena member of European University of Technology, 30203 Cartagena, Spain.
| | - Sujeet Gaware
- Department of Chemistry, Institute of Chemical Technology-Indian Oil Odisha Campus, IIT Kharagpur Extension Centre, Mouza Samantpuri, Bhubaneswar 751013, Odisha, India
| | - Jose Antonio Pérez
- Departamento de Ingeniería Química y Ambiental. Área de Química Inorgánica, Universidad Politécnica de Cartagena member of European University of Technology, 30203 Cartagena, Spain.
| | - José Pérez
- Departamento de Ingeniería Química y Ambiental. Área de Química Inorgánica, Universidad Politécnica de Cartagena member of European University of Technology, 30203 Cartagena, Spain.
| | - Pedro Lozano
- Departamento de Bioquímica y Biología Molecular B e Inmunología, Facultad de Química, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, 30071 Murcia, Spain
| | - Santosh Kori
- Department of Chemistry, Institute of Chemical Technology-Indian Oil Odisha Campus, IIT Kharagpur Extension Centre, Mouza Samantpuri, Bhubaneswar 751013, Odisha, India.,Department of Chemistry, Institute of Chemical Technology, Mumbai, Nathalal Road, Matunga, Mumbai-400019, India.
| | - Rambabu Dandela
- Department of Chemistry, Institute of Chemical Technology-Indian Oil Odisha Campus, IIT Kharagpur Extension Centre, Mouza Samantpuri, Bhubaneswar 751013, Odisha, India
| | - Yogesh S Sanghvi
- Rasayan Inc. 2802, Crystal Ridge Road, Encinitas, California, 92024-6615, USA
| | - Anant R Kapdi
- Department of Chemistry, Institute of Chemical Technology, Mumbai, Nathalal Road, Matunga, Mumbai-400019, India.
| |
Collapse
|