Catalyst Reagent Yield A 1 86.8 A 1 82.4 A 1 86.7 A 1 83.5 A 2 93.4 A 2 85.2 A 2 94.8 A 2 83.1 A 3 77.9 A 3 89.6 A 3 89.9 A 3 83.7 B 1 71.9 B 1 72.1 B 1 80.0 B 1 77.4 B 2 74.5 B 2 87.1 B 2 71.9 B 2 84.1 B 3 87.5 B 3 82.7 B 3 78.3 B 3 90.1 C 1 65.5 C 1 72.4 C 1 76.6 C 1 66.7 C 2 66.7 C 2 77.1 C 2 76.7 C 2 86.1 C 3 72.7 C 3 77.8 C 3 83.5 C 3 78.8 D 1 63.9 D 1 70.4 D 1 77.2 D 1 81.2 D 2 73.7 D 2 81.6 D 2 84.2 D 2 84.9 D 3 79.8 D 3 75.7 D 3 80.5 D 3 72.9