There has been a notable surge of interest in the identification and optimization of materials that yield efficient organic photovoltaic solar cells. One synthetic approach for increasing the band gap in C₆₀ derivatives is the addition of multiple adducts to C₆₀. Multiple additions to C₆₀ disrupt C₆₀’s pi-conjugated network, affording a higher LUMO by virtue of a larger band gap. However, syntheses that exploit multi-additions to C₆₀ can be problematic due to the multiplicity of resulting C₆₀ isomers. One attractive approach towards limiting isomer formation in C₆₀ multiadducts is via tether directed bis-functionalization. Here we present the synthesis of a series of tether directed C₆₀ bis adducts. The tethers were fashioned using DCC couplings derived from a combination of benzoyl propionic or benzoyl butyric acid with a sterically restrictive 1,2 or 1,3 or 1,4 Dimethanol Benzene linker. This tethered synthon will be used to bis functionalize C₆₀, raising its LUMO. In addition, a higher level of regio-selective control is expected in the formation of these bis adducts along with a minimization of the number of sterically congested isomers which inhibit electron transport through the fullerene core. We anticipate that this increase in LUMO and minimization of isomers will lead to a higher open circuit voltage improving the solar power conversion efficiency of the photovoltaic cell.