9,9-Dimethyl-8,10-dioxapentacyclo[5.3.0.02,5.03,5.03,6]decane and naphthotetracyclo[5.1.0.01,6.02,7]oct-3-ene: new substituted [1.1.1]propellanes as precursors to 1,2,3,4-tetrafunctionalized bicyclo[1.1.1]pentanes
摘要:
Two new substituted [1.1.1]propellanes have been generated from the corresponding bicyclo[1.1.0]butanes in either single-step (1a) or four-step procedures (1b). The observed degree of double lithiation of the bicyclo[1.1.0]butanes is discussed in the context of DFT computational results. Addition reactions across the central C(1)-C(3) bonds of the propellanes were studied. Only the propellane 1b gave the biacetyl addition product. (C) 2004 Elsevier Ltd. All rights reserved.
9,9-Dimethyl-8,10-dioxapentacyclo[5.3.0.02,5.03,5.03,6]decane and naphthotetracyclo[5.1.0.01,6.02,7]oct-3-ene: new substituted [1.1.1]propellanes as precursors to 1,2,3,4-tetrafunctionalized bicyclo[1.1.1]pentanes
作者:Baldur Stulgies、Dennis P. Pigg、Piotr Kaszynski、Zbigniew H. Kudzin
DOI:10.1016/j.tet.2004.10.057
日期:2005.1
Two new substituted [1.1.1]propellanes have been generated from the corresponding bicyclo[1.1.0]butanes in either single-step (1a) or four-step procedures (1b). The observed degree of double lithiation of the bicyclo[1.1.0]butanes is discussed in the context of DFT computational results. Addition reactions across the central C(1)-C(3) bonds of the propellanes were studied. Only the propellane 1b gave the biacetyl addition product. (C) 2004 Elsevier Ltd. All rights reserved.