Page 1. Oxidation of Thiols to Disulfides Using Silica Chloride as a Heterogeneous Catalyst Manisha Sathe, Ramarao Ghorpade, and Mahabir Parshad Kaushikà Process Technology Development Division, Defence R & D Establishment, Jhansi Road, Gwalior-474002 (MP), India (Received July 18, 2006; CL-060808; E-mail: mpkaushik@rediffmail.com) ... 1994, 35, 6127. b) M. Sathe, AK Gupta, MP Kaushik, Tetrahedron Lett. 2006, 47, 3107. ...