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. Author manuscript; available in PMC: 2017 Aug 8.
Published in final edited form as: Angew Chem Int Ed Engl. 2016 Jul 1;55(33):9529–9533. doi: 10.1002/anie.201602748

Table 2. Purity and yield of trimers.

Purity (%)/Yield (%)

R1R2\R3 1 2 3 4 5 6
12 71/36
14 100/48 89/14
21 73/83 78/34
25 100/67
34 100/64
36 90/54
42 100/82
44 100/87
46 91/58
53 100/97
54 99/86
63 95/60