1,721,196 research outputs found
Phenols and lignans from Chenopodium album.
No full textCutillo, Francesca; Dellagreca, Marina; Gionti, Melania; Previtera, Lucio; Zarrelli, Armando. Phenols and lignans from Chenopodium album. Phytochemical Analysis (2006), 17(5), 344-349. CODEN: PHANEL ISSN:0958-0344. CAN 146:375816 AN 2006:1047207 CAPLU
Fenantreni come potenziali algicidi
No full textDescrizione dell'isolamento e della determinazione strutturale di fenantreni e valutazione della loro attività antialgale
Determinazione quanto-qualitativa dei componenti del Primo Fiore, ottenuto da Olea europea esul Primo Fiore ionizzato
No full textPlants as Biofactories to Produce Food, Medicines, and Materials for a True Green Revolution
Full text linkA proper diet is the basis of a healthy life; according to the WHO, approximately 1/3 of cardiovascular diseases and cancers can be avoided with a balanced and healthy diet [...
New phosphoramidite reagent for phosphorylation of synthetic oligonucleotides in terminal position
No full textPhosphoramidite I (1, R = iPr) useful as phosphorylation reagent in oligonucleotide syntheses, were prepd. by monomethoxytrityl protection of 4-hydroxybenzaldehyde with subsequent borohydride redn. and phosphorylation with 2-cyanomethyl N,N-diisopropylphosphoroamidochloridite. In an example, reaction of 5.08 g of 4-hydroxybenzaldehyde with 1.0 g of 4-methoxytriphenylmethyl chloride in 10 mL of dichloromethane in the presence of 2.2 mL of EtNiPr2 at 20° for 6 h gave the protected benzaldehyde, which was reduced with 0.25 g of NaBH4 in 10 mL of THF for 6 h at 20°, giving the protected benzyl alc., 4-MMTO-C6H4CH2OH with 85% yield. The obtained product (0.23 g) was reacted with 0.2 mL of phosphoramidochloridite NCCH2CH2OP(Cl)NiPr2in the presence of 0.4 mL of EtNiPr2 in 5 mL of CH2Cl2, giving the product 1 with 87% yield
Structures of new phenylphenalene-related compounds from Eichornia crassipes (water hyacint)
No full textIsolation of lignans as seed germination and plant growth inhibitors from Mediterranean plants and chemical synthesis of some analogues
No full textLignans and lignins are among the main metabolic products of phenylpropanoid metabolism in vascular plants. They are compounds representing the building blocks of plant cell walls. Moreover they have a broad range of biological activities such as antitumoral, antimitotic, antiviral and cytotoxic and are thought to be involved in the plant defense against pathogens and pests. In this paper we report a survey of the past and current literature about lignans and neolignans and their germination inhibitory activity on cultivated and wild species from plants of the Mediterranean area. Some examples of synthetic methodologies of these molecules have also been reported
- …
