\documentclass{report}

\documentclass{report}
\usepackage{german,rotating,times}
\usepackage[latin1]{inputenc}
\begin{document}

\begin{table}
\caption{Anwendungs�bersicht �ber verschiedene
Derivatisierungsreagenzien I}
\begin{tabular}{l*6{c}}
\rule{0mm}{27mm} % Freihalten in H�he der Legende
\hfil\begin{rotate}{60}Reagenz\end{rotate}\hfil &
\begin{rotate}{60}Alkohole\end{rotate} &
\begin{rotate}{60}Amine\end{rotate} &
\begin{rotate}{60}Aminos�uren\end{rotate} &
\begin{rotate}{60}Carbons�uren\end{rotate} &
\begin{rotate}{60}Hydroxylgruppen\end{rotate} &
\begin{rotate}{60}Phenole\end{rotate} \\
\hline
Bortrifluorid-Methanol-Komplex & & & x & & & \\
Chlortrimethylsilan & x & x & x & x & x & x \\
Dichlordimethylsilan & & & x & & &\\
Hexamethyldisiloxan & & & & & x & \\
N-Methyl-bis(trifluoracetamid) & x & x & & & & x \\
\hline
\end{tabular}
\end{table}
\end{document}