Abstract:Notes 2665 into r values given above, assuming values of 2.73 for internal (solvent) chloroform peak, 5.35 for external water reference, and 8.77 for external cyclohexane reference, for the sake of convenience in comparing shift values. 4-Methylene-5,5-pentamethylene-3-phenyl-2-oxazolidinone (IVB) from 1-Ethynylcyclohexanol (IB).-To a solution of 3.5 g. of IB* *6 in 40 ml. of toluene, 3.7 g. of phenyl isocyanate was added and the mixture was heated under reflux for 4 hr. and then the solvent was removed under … Show more
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