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The chemical composition of essential oil (1.18% yield) from celery seeds by hydrodistillation extraction method was analyzed by GC-MS. A total of 23 constituents were detected, in which 18 compounds that account for 91.38% were identified. The main constituents were limonene (31.15%), β-selinene (22.28%) , p-cresyl isovalerate (14.94%), α-2-propenylbenzenemethanol (9.872% ), β-myrcene (4.32%) and α-selinene (4.32%). The abilities of scavenging DPPH radical of the essential oil and hydrodistillation residue were studied. The result indicated that the maximum scavenging rates was 98.1% when 0.20 mL of the oil was used. The extracts of residue by methanol, ethanol and acetone also has remarkable scavenging activity. The result showed that the scavenging rates of the methanol, ethanol and acetone extracts of the residue were 91.5%, 91.2% and 56.2% respectively, when 0.10 mL of the extract solutions was used.

The essential oil (yield 1.46%, w/w) of Monarda citriodora flowers obtained by hydrodistillation was analysed by GC-MS, Totally 30 constituents were detected. 26 compounds representing 97.23% were identified, of which thymol (44.599%), 1,8-cineole (23.613%), α-phellandrene (4.815%) and β-cymene (4.019%) were major compounds. Thus, the monoterpenes and sesquiterpenes were the predominant portions of the oil. Antibacterial ability of Monarda citriodora essential oil was tested by disc agar diffusion against Escherichia coli, Bacillus subtilis, and Staphylicoccus albus. Antibacterial properties were compared to penicillin. Higher antibacterial activity was observed.

A new monoterpene glucoside (1) was isolated from a methanol extract of the dried aerial parts of thyme (Thymus vulgaris L.), together with known 2- and 5-beta-D-glucopyranosylthymoquinols (2 and 3, respectively), and (-)-angelicoidenol-beta-D-glucopyranoside (4). The structure of 1 was elucidated to be (R)-p-cymen-9-yl beta-D-glucopyranoside by spectral evidence and enantioselective synthesis from (R)- and (S)-p-cymen-9-ol derived from p-cymen-8-ol.

A simple and efficient new synthesis of 9-nor-9-hydroxyhexahydrocannabinol is achieved, through the intramolecular [4+2] cycloaddition of an o-quinonemethide which is generated from 2-(1-hydroxy-3-methoxymethoxy-7-methyl-6-octenyl)-1,3-bis(O-methoxymethyl)olivetol (12b), which in turn is prepared by reaction of the lithiated olivetol bis(methoxymethyl)ether with 3-methoxymethoxy-7-methyl-6-octenal (9)

A simple and efficient new synthesis of 9-nor-9-hydroxyhexahydrocannabinol is achieved, through the intramolecular [4+2] cycloaddition of an o-quinonemethide which is generated from 2-(1-hydroxy-3-methoxymethoxy-7-methyl-6-octenyl)-1,3-bis(O-methoxymethyl)olivetol (12b), which in turn is prepared by reaction of the lithiated olivetol bis(methoxymethyl)ether with 3-methoxymethoxy-7-methyl-6-octenal (9)