Visible light motivated synthesis of polyhydroquinoline derivatives using CdS nanowires Rajkumar R. Harale 1 • Praveen V. Shitre 1 • Bhaskar R. Sathe 1 • Murlidhar S. Shingare 1 Received: 5 October 2016 / Accepted: 25 November 2016 Ó Springer Science+Business Media Dordrecht 2016 Abstract In this article, we report the synthesis of one-dimensional cadmium sulphide nanowires (CdS NWs) by chemical synthesis approach. These as-synthesized materials were characterized by ultraviolet–visible spectroscopy, X-ray diffraction, scanning electron microscopy with energy dispersive spectroscopy, and transmission electron microscopy analysis. These nanowires have an average diameter of *20 nm and length up to several micrometres. CdS NWs are highly stability and are found to be a very efficient recyclable/reusable (minimum four times without any significant loss) photo- catalyst for polyhydroquinoline synthesis under visible light (Halogen lamp, 70 W) at room temperature. This system offers a mild, efficient, and highly economical alternative to the existing protocols in its catalytic activity under visible light irradiation (k C 420 nm). These findings will open up new opportunities for developing low-cost efficient photocatalyst synthesis of value added intermediates. & Murlidhar S. Shingare prof_msshingare@rediffmail.com Bhaskar R. Sathe bhaskarsathe@gmail.com 1 Department of Chemistry, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad 431004, India 123 Res Chem Intermed DOI 10.1007/s11164-016-2822-2