The reaction of hydrazones of 2-aminoacetophenone with triphosgene in dichloromethane or benzene in the presence of triethylamine gave quinazolines, pyrazolo[1,5-c]quinazoline and spiro…
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H. Z. Alkhathlan, M. A. Al-Saad, A. A. Mousa H. M. Al-Hazimi, K. A. Al-Farhan , A. A. Mousa and otheres
Naturally occurring sesquiterpene lactones from Artemisia species which appeared in the literature during the last six years (1984-1989) have been reviewed.
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Hamad Z. Alkhathlan, A. A. Mousa and H. M. G. Al-Hazimi , A.A. Mousa and otheres
Essential oils (EOs) from the stems and leaves of Origanum vulgare L. grown in Saudi Arabia and Jordan were analyzed by gas chromatography–mass spectrometry (GC–MS) and GC–flame ionization…