L. Brandsma et al., AN UNEXPECTED PATHWAY OF THE REACTION OF LITHIATED 1,1-DIMETHYLALLENEWITH ISOPROPYL ISOTHIOCYANATE, Russian chemical bulletin, 46(4), 1997, pp. 832-833
The reaction of lithiated 1,1-dimethylallene with isopropyl isothiocya
nate gives 4,5a-trimethyl-2-methylthio-3H-cyclobuta[b]pyrrole resultin
g from cyclization of the intermediate 2,7-dimethyl-4-methylthio-3-aza
octa-2,4,6-triene.