Affiliation:
1. Department of Chemical, Materials and Production Engineering, University of Naples Federico II, I-80125 Naples, Italy
2. Department of Chemical Sciences, University of Naples Federico II, I-80126 Naples, Italy
Abstract
An organolithium reagent containing a 5,6-dihydro-1,4-dithiin moiety has been herein used as homologating agent to build up a fully protected divinylcarbinol by two different synthetic procedures, respectively, based on a step-by-step approach or a tandem process. The resulting molecule contains two double bonds masked by two dithiodimethylene bridges that can be stereoselectively removed to give a E,E- or Z,Z-configured divinylcarbinol. These products could then be conveniently functionalized, for example, with hydroxyl or amino functions, for the construction of the skeleton of more complex systems.
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