Synthesis 2018; 50(20): 4019-4036
DOI: 10.1055/s-0037-1610236
short review
© Georg Thieme Verlag Stuttgart · New York

Dichlorodioxomolybdenum(VI) Complexes: Useful and Readily Available Catalysts in Organic Synthesis

Raquel Hernández-Ruiz
,
Área de Química Orgánica, Departamento de Química, Facultad de Ciencias, Pza. Misael Bañuelos s/n, Universidad de Burgos, 09001 Burgos, Spain   Email: rsd@ubu.es
› Author Affiliations
Financial support from Ministerio de Economía y Competitividad (MINECO) (CTQ2016-48937-C2-1-P) and Junta de Castilla y León and FEDER (BU076U16) is gratefully acknowledged.
Further Information

Publication History

Received: 21 May 2018

Accepted after revision: 16 July 2018

Publication Date:
05 September 2018 (online)


Abstract

Molybdenum(VI) dichloride dioxide (MoO2Cl2), and its addition complexes [MoO2Cl2(L)n; L = neutral ligand], are commercially or easily available and inexpensive transition-metal complexes based on a non-noble metal that can be applied as catalysts for various organic transformations. This short review aims to present the most significant breakthroughs in this field.

1 Introduction

2 Preparation and Reactivity of MoO2Cl2(L)n Complexes

2.1 Synthesis and Structure

2.2 Reactivity of Dichlorodioxomolybdenum(VI) Complexes

3 Redox Processes Catalyzed by MoO2Cl2(L)n Complexes

3.1 Deoxygenation Reactions Using Phosphorus Compounds

3.2 Deoxygenation and Hydrosilylation Reactions Using Silanes

3.3 Reduction Reactions Using Hydrogen

3.4 Deoxygenation Reactions with Boranes and Thiols

3.5 Reduction Reactions with Glycols

3.6 Oxidation Reactions

4 Ambiphilic Reactivity of MoO2Cl2

4.1 Amphoteric Lewis Acid–Lewis Base Catalyzed Reactions

4.2 Lewis Acid Type Catalyzed Reactions

5 Conclusion and Perspective