Microwave-assisted synthesis utilizing solid-supported reagents and scavengers: A rapid and versatile technique in multi-step organic synthesis and purification

ORGN 473

Shahnaz Ghassemi, SGhassemi@biotage.com, Biotage, 1725 Discovery Drive, Charlottesville, VA 22911
Bound reagents are functional polymers designed to perform synthetic transformations in same way as their solution counterparts. In this technique excess reagent and by-products remain attached to the solid, while product is in solution. Possible advantages of this technique are facile monitoring of reaction progress while reducing purification bottleneck. The disadvantage of this technique is the relative slow rate of reaction. Microwave irradiation has been used to overcome this problem and increase rate of reaction of solid-assisted solution phase synthesis. This presentation covers few examples of this technique in developing efficient and robust methods for the preparation of biologically interesting compounds, by using microwave heating in conjunction with PS-carbodiimide, PS-Ph3Pd, PS-DIEA, Si-Carbonate, Si-Thiol, and Si-triamine.