Series # |
KS# | X | % yield |
m.p. °C |
Recr. Solv. | Crystal appearance |
IR cm.-1 |
|
---|---|---|---|---|---|---|---|---|
19a | KS72 | p-CO2CH3 | 87 | 130 - 131 | Ethanol | Lustrous
yellow needles |
755
1714 2228 |
OOP
C=O C≡N |
19b | KS75 | p-CH2 | 91 | 107- 108 | Cyclohexane | Chunky pink
needles |
769
822 2224 |
OOP
OOP C≡N |
19c | KS74 | p-Br | 96 | 104.9- 105.3 | Ethanol | Off-white
plates |
755
2221 |
OOP
C≡N |
19d | KS76 | p-OCH3 | 36 | 130- 131 | Ethanol | Metallic buff
needles |
765
828 1247 2218.5 |
OOP
OOP C–O C≡N |