## 2 Results and Discussion
### m-CPBA-Mediated Epoxidation
\begin{table}
\begin{tabular}{c c c c c c c c c c c c} \hline \hline
**Entry** & **Subs.** & **Pre-cat (mol\%)** & \begin{tabular}{c} **Ovidant** \\ **(equiviv)** \\ \end{tabular} & \begin{tabular}{c} **Temp.** \\ **(\({}^{\circ}\)C)** \\ \end{tabular} & \
\begin{tabular}{c} **Time** \\ **(h)** \\ \end{tabular} &
\begin{tabular}{c} **Conv** \\ **(\%)** \\ \end{tabular} & \multicolumn{6}{c}{**Distribution of Products \({}^{*}\)**} \\ \hline
**1** & **1** & **-** &
\begin{tabular}{c} **TBHP** \\ **(10)** \\ \end{tabular} & **80** & **24** & - & - & - & - & - & - \\ \hline
**2** & **1** & \
\begin{tabular}{c} [MoO\({}_{2}\)(SAP)]\({}_{2}\) \\ (0.5) \\ \end{tabular} &
\begin{tabular}{c} TBHP (5) \\ \end{tabular} & 80 & 3 & 100 & 37 & 4 & 2 & - & 57 \\ \hline
**3** & **1** & \
\begin{tabular}{c} [MoO\({}_{2}\)(SATP)]\({}_{2}\) \\ (0.5) \\ \end{tabular} &
\begin{tabular}{c} TBHP (5) \\ \end{tabular} & 80 & 3 & 100 & 37 & 4 & 2 & - & 57 \\ \hline
**4** & **1** & - &
\begin{tabular}{c} mCPBA \\ (1) \\ \end{tabular} & 25 & 0.5 & 100 & 74 & 20 & - & - & 6 \\ \hline
**5** & **2** &
\begin{tabular}{c} [MoO\({}_{2}\)(SAP)]\({}_{2}\) \\ (0.5) \\ \end{tabular} & TBHP (5) & 80 & 8 & 100 & 29 & 18 & 5 & - & 48 \\ \hline
**6** & **2** &
\begin{tabular}{c} [MoO\({}_{2}\)(SATP)]\({}_{2}\) \\ (0.5) \\ \end{tabular} & TBHP (5) & 80 & 3.66 & 100 & 37 & 26 & 7 & - & 30 \\ \hline
**7** & **2** & - &
\begin{tabular}{c} mCPBA \\ (1) \\ \end{tabular} & 25 & 0.33 & 100 & 48 & 52 & - & - & - \\ \hline
**8** & **3** &
\begin{tabular}{c} [MoO\({}_{2}\)(SAP)]\({}_{2}\) \\ (2.5) \\ \end{tabular} & TBHP (2) & 80 & 1.66 & 0 & - & - & - & - & - \\ \hline
**9** & **3** &
\begin{tabular}{c} [MoO\({}_{2}\)(SAP)]\({}_{2}\) \\ (1.5) \\ \end{tabular} & TBHP (5) & 80 & 2.5 & 100 & 1 & 1 & - & - & 98 \\ \hline
**10** & **3** &
\begin{tabular}{c} [MoO\({}_{2}\)(SATP)]\({}_{2}\) \\ (0.5) \\ \end{tabular} & TBHP (2) & 80 & 1.5 & 0 & - & - & - & - & - \\ \hline
**11** & **3** &
\begin{tabular}{c} [MoO\({}_{2}\)(SATP)]\({}_{2}\) \\ (0.5) \\ \end{tabular} & TBHP (5) & 80 & 20 & 99 & 1 & 1 & - & - & 97 \\ \hline
**12** & **3** & - &
\begin{tabular}{c} mCPBA \\ (1) \\ \end{tabular} & 25 & 0.5 & 96 & 71 & 24 & - & - & 1 \\ \hline
**13** & **4** &
\begin{tabular}{c} [MoO\({}_{2}\)(SAP)]\({}_{2}\) \\ (0.5) \\ \end{tabular} & TBHP (2) & 80 & 24 & 0- & - & - & - & - & - \\ \hline
**14** & **4** &
\begin{tabular}{c} [MoO\({}_{2}\)(SAP)]\({}_{2}\) \\ (1.5) \\ \end{tabular} & TBHP (5) & 80 & 21 & 93 & - & 14 & 2 & - & 84 \\ \hline
**15** & **4** &
\begin{tabular}{c} [MoO\({}_{2}\)(SATP)]\({}_{2}\) \\ (1.5) \\ \end{tabular} & TBHP (5) & 80 & 2 & 80 & - & 19 & 4 & - & 77 \\ \hline
**16** & **4** & - &
\begin{tabular}{c} mCPBA \\ (1) \\ \end{tabular} & 25 & 0.5 & 83 & - & 32 & - & 51 & - \\ \hline \hline \end{tabular} Substrate concentration: 50 mM substrate in toluene (or DCM for _m_CPBA reactions); oxidant: TBHP (70 wt% in H\({}_{2}\)O); _m_CPBA (70 wt% in H\({}_{2}\)O) and mCBA); \({}^{*}\) ratios are calculated from integral values in \({}^{1}\)H-NMR spectra of reaction mixtures; \({}^{\text{a}}\) non-characterized mono- and oligomers.  
\end{table} 
Table 1: Conversions and ratio of product for all reactions. Compounds A, B, C and D are shown in Figure 6.  
Figure 3: Products formed in the reactions.