2543. Corydaldine

Nomenclature

CAS number: 493-49-2
3,4-Dihydro-6,7-dimethoxy-1(2H)-isoquinolinone; 3,4-dihydro-6,7-dimethoxyisocarbostyril; 1,2,3,4-tetrahydro-6,7-dimethoxy-1(2H)-1-isoquinolone.
C11H13NO3; mol wt 207.23.
C 63.75%, H 6.32%, N 6.76%, O 23.16%.

Description and references

Synthesis: Sp"ath, Dobrowsky, Ber. 58, 1274 (1925); Mohunta, Ray, J. Chem. Soc. 1934, 1263; Wiesner et al., J. Am. Chem. Soc. 77, 675 (1955); Brossi et al., Helv. Chim. Acta 43, 1459 (1960); Mahuzier, Hamon, Bull. Soc. Chim. Fr. 1969, 684.

Chemical structure

Properties

Monoclinic prisms from water or alcohol, mp 175°. Sol in water, alcohol, ether, benzene, chloroform. Practically insol in petr ether.