Table 1 Yields and melting points (m.p.) of compounds 5a-d, 6a-c, 8a-d and 9a-c
Series 1 | Series 2 | ||||
|---|---|---|---|---|---|
Compounds | % yield | m.p. (°C) | Compounds | % yield | m.p. (°C) |
5a | 59 | 80–82 | 8a | 62 | 88–90 |
5b | 79 | 86–88 | 8b | 69 | 84–86 |
5c | 71 | semisolid | 8c | 71 | 76–78 |
5d | 67 | semisolid | 8d | 61 | 112–114 |
6a | 60 | 78–80 | 9a | 51 | 76–78 |
6b | 65 | 90–92 | 9b | 40 | 96–98 |
6c | 75 | 65–67 | 9c | 55 | 68–70 |