Table 4.
Structures and yields of dioxolanes 27a–e.
| Dioxolane 27a–e |
R | Yield (cis + trans), % |
Ratio (cis/trans) |
| a | ![]() |
88 | 1/7 |
| b | ![]() |
100 | trans isomer |
| c | ![]() |
75 | 1/22 |
| d | ![]() |
100 | 1/13 |
| e | ![]() |
82 | 1/2.8 |
Structures and yields of dioxolanes 27a–e.
| Dioxolane 27a–e |
R | Yield (cis + trans), % |
Ratio (cis/trans) |
| a | ![]() |
88 | 1/7 |
| b | ![]() |
100 | trans isomer |
| c | ![]() |
75 | 1/22 |
| d | ![]() |
100 | 1/13 |
| e | ![]() |
82 | 1/2.8 |