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Perspirocyclopropanated [3]Rotane—A Section of a Carbon Network Containing Spirocyclopropane Units?
Author(s) -
Kozhushkov Sergei I.,
de Meijere Armin,
Haumann Thomas,
Boese Roland
Publication year - 1993
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199304011
Subject(s) - section (typography) , computer science , operating system
The increase in strain in branched triangulanes has hardly any influence on the bond lengths. This is shown by the comparison of the structures of twofold ( 1 ), fourfold ( 2 ), and sixfold cyclopropanated ( 3 ) [3]rotanes. In 3 , which is prepared in six steps from perspirocyclopropanated bicyclopropylidene ( 4 ), the bonds of the central three‐membered ring are significantly longer than in [3]rotane. In spite of its high total strain, 3 is stable up to 250 °C.