Exactly.tohello [\J ウ ] or: (\J ウ)[] and () are not escapedcheers,Giovanni
I think because the {}'s define a scope in latex and so the \J only
affects text surrounded by the {}.
For Christian, what about "\J{ text }" instead as org is careful to
let this type of construct go through unchanged, if I understand
correctly. This does depend on how you have defined J but possibly a
slight redefinition would work (\newcommand{\J}[1]{.... #1}).