| 1984-1989 | Member of Organic Chemistry Sub-Committee, SERC |
| 1985-1989 | Member of the Chemistry Committee, SERC |
| 1985-1989 | Member of the Instrument Panel, SERC |
| 1985 | SERC Chemistry Committee representative on Science Board Special Instrumentation Committee |
| 1985-1992 | Member of the RSC Medicinals and Fine Chemicals Group Committee |
| 1986-2004 | Nuffield Foundation, Newly Appointed Lecturers Grant Committee |
| 1988 | Organising Committee EUCHEM Symposium ‘Chemical Synthesis of Antibiotics, Aussois, France |
| 1989 | Scientific Committee 5th IUPAC Symposium on Organometallic Chemistry, Florence |
| 1989-1996 | Royal Society of Chemistry Member of Perkin Division Council |
| 1990-1991 | Scientific Committee 7th IUPAC Symposium on Pesticide Chemistry, Hamburg |
| 1991-1992 | Scientific Committee 9th IUPAC Symposium on Organic Synthesis, Montreal |
| 1995 | International Scientific Committee, OMCOS-8, Santa-Barbara, USA |
| 1995-2000 | EPSRC Synthetic and Biological Chemistry Panel, Invited Member of College |
| 1996 | International Advisory Committee, 11th IUPAC Organic Synthesis, Amsterdam |
| 1996 | International Advisory Committee, 20th IUPAC Symposium on the Chemistry of Natural Products, Chicago, USA |
| 1997 | International Scientific Committee, OMCOS-9, Göttingen |
| 1997 | International Advisory Committee ‘Biodiversity and Bioresources – Conservation and Utilization’, Phuket, Thailand |
| 1998 | Scientific Programme Committee, 9th IUPAC Pesticide Chemistry Congress, London |
| 1998 | International Advisory Committee, 12th IUPAC, Organic Synthesis, Venice |
| 1998 | Organising Committee 7th Belgium Organic Synthesis Symposium, Louvain-la-Neuve |
| 1999 | International Scientific Committee, OMCOS-10, Versailles, Paris |
| 1999-2011 | Royal Society of Chemistry, Parliamentary Affairs Committee |
| 2001 | International Scientific Committee, OMCOS-11, Taipei, Taiwan |
| 2001-2012 | Titular Member, Division of Organic and Biomolecular Chemistry, IUPAC |
| 2003 | International Advisory Committee, 39th IUPAC ‘Chemistry at the Interface’, Ottawa |
| 2004 | International Scientific Advisory Committee, 15th International. Symposium on Organic Synthesis, Nagoya, Japan |
| 2004 | International Committee ISBOC-7 Conf. on Biomolecular Chemistry, Sheffield |
| 2004 | Advisory board for the Natural Products and Heterocyclic Chemistry Conf., New Delhi, India |
| 2004-2008 | Advisory Board and Scientific Council of Chemgen Pharma International |
| 2006 | Member Scientific Committee, 1st FECS Chemistry Congress, Budapest, Hungary |
| 2008 | Member of International Advisory Board to the 17th International Conference on Organic Synthesis (ICOS-17), Daejeon, Republic of Korea. |
| 2017 | EFMC Advances in Synthetic and Medicinal Chemistry (EFMC-ASMC’17), Scientific Advisory Board, Vienna |
