132783-13-2Relevant academic research and scientific papers
Activation and Control of the Reaction of the Reaction of Dioxastannolane with Carbon Disulfide and Phenyl Isothiocyanate by the Addition of Bases
Yano, Katsunori,Baba, Akio,Matsuda, Haruo
, p. 1881 - 1884 (2007/10/02)
1,3-Dioxa-2-stannolanes 1 are readily activated by Lewis bases such as Bu3P and Et3N to give cycloadducts on reaction with carbon disulfide or phenyl isothiocyanate under mild conditions.In particular, bases play a characteristic role in the reaction with
Stereospecific Cycloaddition of Heterocumulenes to Oxiranes Catalyzed by Organotin Halide Complexes
Baba, Akio,Seki, Kenji,Matsuda, Haruo
, p. 1925 - 1930 (2007/10/02)
Stereospecific cycloaddition of 2,3-disubstituted oxiranes to heterocumulenes, including carbodiimides, isocyanates and carbon dioxide, is catalytically promoted by dialkyltin diiodide-hexamethylphosphoric triamide (HMPA) system, producing various five-membered heterocycles, where the configuration of the carbons in the oxirane ring is retained.In particular, the addition of isocyanates to oxiranes gave stereospecifically two types of products, dioxolan-2-imines and oxazolidin-2-ones independently, while the rearrangement of the former to the latter product has been already proposed.
