ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

The isolation and analysis of an essential oil from Stachys annua

E. Malý

Slovak University, Bratislava

Abstract: A new essential oil (I) from S. annua of d214 0.9125, d14 0.9150, [α]20D -23, 3 (in MeOH) was isolated. Chem. and chromatographic analyses show that I is composed of 2 compds.: bicyclic sesquiterpene of the cadalene type (II) and enol, which appears to be a deriv. of sesquiterpene (III). II is a yellow oil having: d184 0.9050, d244 0.9000, n24D 1.4951, [α]20D -24 (in benzene), [R]LD for C₁₅H₂₄ and 2 bonds was 66.23 (calcd. 66.13), mol. wt. 204.3. III is a orange-red heavy oil having d214 0.9892 which changes into butter-like matter of mol. wt. 220.34, [R]LD for C₁₅H₂₄O and 2 bonds was 67.19 (calcd. 67.65). The therapeutic properties, especially for headache, are well known in Slovakia.

Full paper in Portable Document Format: 78a515.pdf (in Slovak)

Chemical Papers 7 (8) 515–521 (1953)