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. Author manuscript; available in PMC: 2011 Jun 4.
Published in final edited form as: J Org Chem. 2010 Jun 4;75(11):3587–3599. doi: 10.1021/jo1003778

Table 3.

Observed rate constants of the cis to trans isomerization.

Compound Substituent kobsa (s−1) std dev std error
7a Et 0.0073 0.0006 0.0003
7b iPr 0.0062 0.0003 0.0002
7c tBu 0.0062 0.0004 0.0002
7d H 0.0026 <0.0001 0.00005
7e F 0.0018 <0.0001 0.00002
7f Cl 0.0017 <0.0001 0.00001
7g Br 0.0015 0.0001 0.00006
7h NO2 0.0001 <0.0001 0.00001
a

average of 3 experiments.