Just recently, Glorious and co-workers discovered an unprecedented conversion of complex aromatic building blocks into saturated pharmaceuticals by using an Rh-based catalyst and a boron-based H2 source. Subsequently, the same group also reported PtO2-catalyzed controllable and chemoselective hydrogenation of benzene and pyridine rings that exist in pharmaceutically relevant complex molecules. These two reports proved useful in terms of chemo-and diastereoselectivity and overcame intractable limitations in the hydrogenation of (hetero)arene chemistry and opened up new frontiers in medicinal and synthetic chemistry. Despite these potential transformative innovations, the high cost of precious metal-based catalysts, the functional group existence on the reducible nitrogen ring of quinoline, as well as the reduction of pyridines bearing sensitive functional groups remain a significant challenge. Indeed, such skeletons are of great importance owing to their wide range of applications in the synthesis of several drugs and natural products. Therefore, the development of the selective and sustainable synthesis of diverse saturated N-heterocycles (e.g., 2-, 3-, or 4-substituted 1,2,3,4-tetrahydroquinolines, and functionalized phenylpiperidine analogs), is highly coveted. Over the last two decades, transfer hydrogenation reactions have emerged as an attractive alternative to the conventional hydrogenation approach. A few benefits of the transfer hydrogenation process are (a) the avoidance of special equipment and gaseous H2 cylinder and (b) the large availability of relatively inexpensive hydrogen donors. Among available hydrogen donors, Ammonia borane (NH3•BH3, AB) is one of the potential solid-state hydrogen-rich material (19.6 wt.%) and is comparatively stable in air and moisture. Further, AB is non-explosive, non-toxic, and moderately inexpensive, and it can be successfully recyclable. For these reasons, AB is applied as an efficient H2 source in various chemical transformations. In this context, our group also recently utilized AB for the reduction of nitroarenes, heteroarenes, and carboxylic esters. Material insufficiency is a particularly crucial problem to be addressed in modern catalysis research. Noble metals are often applied not only in the hydrogenation of (hetero)arenes but also in other related reactions, and several industrial processes rely on them. As such, there is an increasing demand to substitute expensive and endangered metals (e.g., Rh, Ir, Pd, Pt, and Ru) with considerably cheaper, sustainable, and abundant 3d metals. However, this is a challenging task, as the reactivity of non-precious metals is typically different from that of precious metals. Over the last decade, earth-abundant metal catalysts for hydrogenation of (hetero)arenes with high selectivities have attracted much attention due to their analogous properties with those of precious metal-based catalysts in both homogeneous and heterogeneous catalysis. However, there are some limitations in the substrate scope and late-stage saturation of structurally complex molecules. Another crucial limitation is the lack of "general" catalysts for the selective reduction of N-heteroarenes bearing wide reactive functional groups that permit the introduction of greater 3D chemical space and precise structural building blocks into the target molecules. For example, there are exceptionally few reports where a single type of catalyst reduces aromatic rings within heteroarene while preserving different sets of functional groups. Similarly, the same type of catalyst hardly reduces the heteroarene ring in both substituted quinolines and pyridines. To overcome these problems, new catalytic systems are required, which can lower the activation barrier for the reduction of structurally diverse heteroarenes and features tolerance toward reactive functional groups. Such catalytic systems would bring more incentives to pharmaceutical R&D and manufacturing sectors. Notably, Titanium is the second most earth-abundant transition metal as well as non-toxic and plays a crucial role in the field of inexpensive metal catalysis in comparison to other 3d-based metal catalysis. Also, titanium complexes frequently display strongly Lewis acidic metal centers. Therefore, titanium-based catalysts are well applied in synthetically useful organic transformations, particularly titanocene dichloride (Cp2TiCl2), showing new vistas in the exhaustive reduction and hydrodehalogenation as well as hydrodeoxygenation reactions is appealing. To the best of our knowledge, so far, there is only one report on Ti-mediated catalytic hydrogenation of simple arenes such as benzene, toluene, naphthalene, and anthracene. Ti-catalyzed chemoselective reduction of N-heterocycles holding challenging functional groups is, therefore, elusive in the literature. Inspired by the above-mentioned breakthrough reports as well as our continuous interest in the reduction of (hetero)arenes, here, we report that a simple titanocene dichloride allows for chemoselective reduction of Nheterocycles, especially functionalized quinolines and pyridines including few benzofurans using AB as an H2 source, and without the requirement of external sophisticated ligands (Figure ).