Results 1 to 10 of about 1,046,985 (303)

Synthesis of aza-rocaglates via ESIPT-mediated (3+2) photocycloaddition [PDF]

open access: yes, 2016
Synthesis of aza-rocaglates, nitrogen-containing analogues of the rocaglate natural products, is reported. The route features ESIPT-mediated (3+2) photocycloaddition of 1-alkyl-2-aryl-3-hydroxyquinolinones with the dipolarophile methyl cinnamate.
Cencic, Regina   +4 more
core   +1 more source

Structure determination of a 4-pyrone from the liverwort Plagiochila bifaria (Sw.) Lindenb. (Plagiochilaceae) [PDF]

open access: yes, 2008
The centenary of the presentation in 1907 of the "polyketide" hypothesis by Collie, along with his use of a 4-pyrone as an example, is marked by reporting the discovery and isolation of 2-(3,4-dimethoxyphenethyl)-6-methyl-4-pyrone from <i> ...
Rycroft, D.S.
core  

Facile synthetic procedure for and electrochemical properties of hexa(2-thienyl)benzenes directed toward electroactive materials [PDF]

open access: yes, 2008
In the presence of RhCl3 center dot 3H(2)O and i-Pr2NEt, the cyclotrimerization of di(2-thienyl)acetylenes proceeded smoothly to afford hexa(2-thienyl)benzenes.
Abruña   +22 more
core   +1 more source

Bioinspired total syntheses of natural products: a personal adventure

open access: yesBeilstein Journal of Organic Chemistry
Bioinspired total synthesis represents an important concept to guide the designing of powerful synthetic strategies. Our group has a long-time interest and experience in designing synthetic strategies through analyzing the biosynthetic pathway of natural
Zhengyi Qin   +7 more
doaj   +1 more source

Application of Alginate-Based Edible Coating with Beeswax Addition on Minimally Processed Pears (Pyrus bretschneideri Rehd.)

open access: yesBiology, Medicine & Natural Product Chemistry
Pears, especially after being cut, tended to experience a decline in quality and damage such as enzymatic browning, moisture loss, and texture changes.
Maftukh Zaina Luthfiyyah   +3 more
doaj   +1 more source

Living GenoChemetics by hyphenating synthetic biology and synthetic chemistry in vivo [PDF]

open access: yes, 2017
Marrying synthetic biology with synthetic chemistry provides a powerful approach toward natural product diversification, combining the best of both worlds: expediency and synthetic capability of biogenic pathways and chemical diversity enabled by organic
AD Roy   +41 more
core   +2 more sources

Studies of chemical speciation in naturally anoxic basins [PDF]

open access: yes, 1980
The chemical speciation of both metals and non-metals, the use of polarographic techniques, and application to the study of the chemistry of anoxic waters are considered.
Davison, W.
core  

Reaction of N,N-Dimethyltryptamine with Dichloromethane Under Common Experimental Conditions. [PDF]

open access: yes, 2018
A large number of clinically used drugs and experimental pharmaceuticals possess the N,N-dimethyltryptamine (DMT) structural core. Previous reports have described the reaction of this motif with dichloromethane (DCM), a common laboratory solvent used ...
Dunlap, Lee E, Olson, David E
core   +3 more sources

The potential chemo preventive effect of ursolic acid isolated from Paulownia tomentosa, against N-diethylnitrosamine: initiated and promoted hepatocarcinogenesis

open access: yesHeliyon, 2019
The present study discusses the isolation of ursolic acid from the chloroform extract of Paulownia tomentosa (Thunb) Steud fruits and its cytotoxic effect has been assessed in-vitro was performed in different cells lines (A-549, MCF-7, HepG2) and in-vivo
Sanaa A. Ali   +4 more
doaj   +1 more source

Volatile and Flavonoid Composition of the Peel of Citrus medica L. var. Corsican Fruit for Quality Assessment of Its Liqueur

open access: yesFood Technology and Biotechnology, 2014
The volatile and flavonoid compositions of the peel of Citrus medica L. var. Corsican fruits cultivated in Corsica were studied according to the maturity of the citron fruits measured using growing degree-days.
Nicolas Venturini   +4 more
doaj   +1 more source

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