| 1985 | Visiting Professor at University of Queensland, Brisbane, Australia |
| 1988 | E.T.H. Visiting Professor, Switzerland |
| 1993 | Japanese Society for the Promotion of Science, Fellowship |
| 1994 | Visiting Professor, University of St. Andrews, (1994-2004) |
| 1996 | Frontiers in Chemical Research Program, Texas A & M University |
| 1996 | Visiting Professor, University of Salamanca, Spain |
| 2001 | Tarrant Visiting Professor of Organic Chemistry, University of Florida, USA |
| 2002 | Visiting Professor Lecture Series, University of Milan |
| 2003 | Visiting Professor Masters Lecture Course, University of Pavia |
| 2007 | Honorary Professorship, University of St. Andrews (2007-2010) |
| 2014 | Honorary Visiting Professor, University of Huddersfield (2014 – 2019) |
| 2020 | Honorary Visiting Professor, Imperial College London (2020-2025) |