... THE REGIOCHEMICAL COURSE OF [2+2) CYCLOADDITIONS OF DICHLOROKETENE WITH VINYL- AND ALKYNYLSILANES Rick L. Danheiser*1 and Howard Sard Department of Chemistry, Massachusetts Institute of Technology Cambridge, Massachusetts ... RL Danheiser, H. Sard. ... HG Kuivila, CR Warner, RF Cunico, D. Seyferth, DL White, L. Birkofer, R. Stilke, MG Voronkov, TD Burnashova, OG Yarosh, NV Komarov, TH Chan, D. Massuda, LA Paquette, RV ...