Cyclic alkanedisul?de was effectively synthesized by the cyclization of a,?-alkanedithiol. Despite the formation of a series of cyclic oligomers, no monomeric decanedisulfide resulted from 1,10-decanedithiol. Thus, 1,10-decanedithiol was reacted with a bromo-Wang resin (0.5�1.5 mmol/g loading) in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene to attach one of the dithiol chain ends. A complex of N-chlorosuccinimide and dimethyl sulfide was added to the resin to cause the cyclization of attached 1,10-decanedithiol. The crystal structure of the dimeric macrocycle was determined. Furthermore, topological amphiphilic block copolymers were synthesized by the combination of the ESA-CF process and click chemistry.

Effective syntheses of mono- and multi-cyclic polymers by homo- and hetero-coupling reactions

245th National Meeting (2013)

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