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Updated: Aug 6, 2026

Utilization of Stop-flow Micro-tubing Reactors for the Development of Organic Transformations
Published on: January 4, 2018
Recent advances in titanium-mediated organic transformations
Mahnoor Malik1, Frederico B O Dias2, Abid Mahmood3
1Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan. nasirrasool@gcuf.edu.pk.
Abstract:
Titanium, a key transition metal, attracts considerable attention due to its exceptional mechanical properties, corrosion resistance, cost-effectiveness, unique reactivity, and selectivity in organic synthesis. This study systematically categorizes various titanium-based complexes into cyclopentadienyl, salen/Schiff base, alkoxides, halides, imido/amido, oxides, silicates, and surface-immobilized systems. It examines their mechanistic roles in driving significant organic transformations. Titanium(IV) species primarily act as Lewis acids, activating carbonyls, olefins, and epoxides. In contrast, low-valent titanium (Ti(III)/Ti(II)) participates in radical- and redox-based reactions, such as McMurry coupling and C-C bond formation. TiO2's photocatalytic applications in green oxidation procedures emphasize the metal's environmental and industrial significance. A comparative evaluation demonstrates that titanium alkoxides and silicates provide an optimal integration of catalytic performance and cost-effectiveness. In contrast, Schiff base and Cp-titanium complexes provide improved selectivity at higher material costs. This study aims to provide a detailed mechanistic comparison of titanium-mediated pathways to elucidate the catalyst's role and promote technological advancement in modern organic synthesis.
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