Regiospecific Functionalization of Cyclic Allenes with Catecholeorane |
| |
Authors: | V V Ramana Rao S K Agarwal D Devaprabhakara S Chandrasekaran |
| |
Institution: | Department of Chemistry , Indian Institute of Technology , Kanpur, 208016, India |
| |
Abstract: | Reaction of diborane1 and disiamylborane2 with cyclic allenes, resulted in the formation of a mixture of products resulting from the addition of boron at the central carbon as well as terminal carbon. Fish has reported that addition of 4, 4, 6-trimethyl-1, 3, 2-dioxaborinane to 1, 3-disubstituted allenes takes place at the central carbon atom preferentially when the hydroboration was done at 130° for 35–50 h in a sealed tube.3 The reactivity and stability of catecholborane at high temperatures which is known to provide greater stearic |
| |
Keywords: | |
|
|