- Experimental and theoretical study of substituent effects on3J(13Cl-1H) coupling constants in 1-X-bicyclo[1.1.1]pentanes
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A series of 23 bridgehead-substituted bicyclo[1.1.1]pentanes were synthesized and the 3J(C1-H) coupling constants determined from their proton-coupled 13C NMR spectra. It was found that the values of the couplings are strongly depend
- Della, Ernest W.,Lochert, Ian J.,Peruchena, Nelida M.,Aucar, Gustavo A.,Contreras, Ruben H.
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p. 168 - 178
(2007/10/03)
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- Toward a molecular-size "Tinkertoy" construction set. Preparation of terminally functionalized [n]staffanes from [1.1.1]propellane
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A facile but low-yield synthesis of [n]staffanes (the oligomers of [1.1.1.]propellane 1, n =1-5) functionalized on one or both ends is described, and their properties are summarized. The substituents are -COOCH3, -n-C4H9, -C6H5, -Br, -I, and -SCOCH3, and their conversion to others, such as -COOH, -COCH3 and -SH, is demonstrated. It is proposed that these rod-shaped molecules will be useful in the development of a molecular-size civil engineering construction set analogous to children's toy construction sets.
- Kaszynski, Piotr,Friedli, Andrienne C.,Michl, Josef
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p. 601 - 620
(2007/10/02)
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