5.8The most stable C6H12alkene has a tetrasubstituted double bond:5.9Apply the two general rules for alkene stability to rank these compounds. First, more highly substi-tuted double bonds are more stable than less substituted ones. Second, when two double bonds aresimilarly constituted, the trans stereoisomer is more stable than the cis. The predicted order of de-creasing stability is therefore:5.10Begin by writing the structural formula corresponding to the IUPAC name given in the problem. Abond-line depiction is useful here.The alkene is extremely crowded and destabilized by van der Waals strain. Bulky tert-butyl groupsare cis to one another on each side of the double bond. Highly strained compounds are often quitediffcult to synthesize, and this alkene is a good example.5.11Use the zigzag arrangement of bonds in the parent skeleton fgure to place Eand Zbonds as appro-priate for each part of the problem. From the sample solution to parts (
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This note was uploaded on 09/20/2011 for the course CHM 2210 taught by Professor Reynolds during the Spring '01 term at University of Florida.