H CH CH Acid C=C C=C catalys HoC H H H Trans(76%) Cis(24%) C2004 Thomson- Brooks/Cole
Steric strain cis-2-Butene trans-2-Butene C2004 Thomson -Brooks/Cole
H CH HC CHo C=C H H pd? chacha pd C=C HC H H H trans-2-Butene Butane cis-2-Butene c2004 Thomson-Brooks/Cole
TABLE 6.2 Heats of Hydrogenation of Some Alkenes △HR Substitution Alkene (kJ/mol) (kcal/mol) HoC=CH 137 328 Monosubstituted CHSCHECH 126 CH&CHOCH=CH 126 30.1 (CH)2CHCH=CH. 127 30.3 Disubstituted CH3=CHCH3(cis) 120 28.6 CHCH=CHCH, (trans (CH)2C=CH 119 28.4 Trisubstituted (CH3)2C=CHCH3 113 26.9 Tetrasubstituted (CH3)2C=C(CH3)2 111 26.6 C2004 Thomson - Brooks/Cole
ans △G cIs △G trans Butane Reaction progress C2004 Thomson-Brooks/Cole