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Solid-phase synthesis of sulfur containing heterocycles
Published in Journal of Sulfur Chemistry, 2018
Navjeet Kaur
In solid-phase synthesis, the starting material, synthetic intermediates, and products are linked to an insoluble material (the support) which enabled the simple physical separation of intermediates from solvents and reactants. The main requirement of solid-phase chemistry is a linker which is used to attach a substrate molecule to the solid phase. After the completion of reaction, the product was isolated by cleavage of the linker. The main features of solid-phase synthesis are: (i) attachment of building block to a matrix, which can be filtered, (ii) repeated cycles of chemical conversions (coupling and de-protection) are conducted, also by automation, and (iii) mostly the final product is released from the matrix. But the final product can also be de-protected while it is attached to support by proper choice of chemistry [21].