111787-75-8Relevant academic research and scientific papers
The Cycloaddition of Heterocumulenes to Oxetanes in the Presence of Catalytic Amounts of Tetraphenylstibonium Iodide
Fujiwara, Masahiro,Baba, Akio,Matsuda, Haruo
, p. 1659 - 1663 (2007/10/02)
The cycloadditions of carbon dioxide, isocyanates and carbodiimides to oxetanes proceeded in the presence of catalytic amounts of tetraphenylstibonium iodide (1) under mild conditions, affording the corresponding six-membered heterocycles; 1,3-dioxan-2-ones, 1,3-oxazin-2-ones and 1,3-oxazin-2-imines in good yields, respectively.Moreover, the cycloaddition of 2-phenyloxetane proceeded via predominant ring-cleavage at substituted site.
Cycloaddition of Oxetanes with Heterocumulenes Catalyzed by Organotin-Lewis Base Complex
Shibata, Ikuya,Imoto, Takafumi,Baba, Akio,Matsuda, Haruo
, p. 361 - 363 (2007/10/02)
A series of 2-oxazinones 1-8 were synthesized from the cycloaddition reactions of oxetanes with isocyanates by utilizing the complex of diphenyltin diiodide with hexamethylphosphoric triamide (HMPA) as a catalyst.Moreover, the reactions with carbodiimides
