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)