35634-10-7Relevant articles and documents
Nucleophilic Substitution in 1-Substituted 3-Iodobicyclopentanes. A New Synthetic Route to Functionalized Bicyclopentane Derivatives
Adcock, James L.,Gakh, Andrei A.
, p. 6206 - 6210 (2007/10/02)
Nucleophilic substitution of the iodine in 1-substituted 3-iodobicyclopentanes was investigated.The results of the reaction are strongly dependent on the nature of the nucleophile and the substituent.Whereas the trifluoromethyl derivative 2 is found to be inert in the reactions and gave substitution products only with organolithium reagents, the 1,3-diiodide 1 is much more reactive and affords normal substitution products with nitrogen bases and MeONa but gives propellane with Grignard and organolithium reagents and with triaryl(allkyl)phosphines.Other synthesized 3-iodobicyclopentanes did not give substitution products.A general scheme for the transformations of 1 is also proposed.
Concerning the Synthesis of Propellane
Belzner, Johannes,Bunz, Uwe,Semmler, Klaus,Szeimies, Guenter,Opitz, Klaus,Schlueter, Arnulf-Dieter
, p. 397 - 400 (2007/10/02)
The reaction of 1,1-dibromo-2,2-bis(chloromethyl)cyclopropane (2) with methyllithium in ether led to a solution of propellane (1) in a yield of 70percent. 1 could also be prepared free of solvent by reaction of 2 with lithium powder in triglyme/n-decane at 73 deg C. - Keywords: Cyclopropa annulation/ Propellane/ Polycycles, strained