Results 61 to 70 of about 11,715 (300)

Black raspberry–mediated metabolic changes in patients with familial adenomatous polyposis associated with rectal polyp regression

Food Frontiers
Familial adenomatous polyposis (FAP) patients face an almost certain 100% risk of developing colorectal cancer, necessitating prophylactic colectomy to prevent disease progression. A crucial goal is to hinder this progression.
Yi‐Wen Huang, Hui‐zhi Chen, Ben Niu, Weijie Wu, Haiyan Gao, Jianhua Yu, Li‐Shu Wang   +6 more
doaj   +1 more source

σ- versus π-Activation of Alkynyl Benzoates Using B(C6F5)3

Molecules, 2015
We have prepared a range of alkynyl benzoates in high yields and have investigated their reactivities with the strong Lewis acid B(C6F5)3. In such molecules both σ-activation of the carbonyl and π-activation of the alkyne are possible. In contrast to the
Alexander Bähr, Lewis C. Wilkins, Kevin Ollegott, Benson M. Kariuki, Rebecca L. Melen   +4 more
doaj   +1 more source

Temporal response to harmonic driving in electroconvection

, 2011
The temporal evolution of the spatially periodic electroconvection (EC) patterns has been studied within the period of the driving ac voltage by monitoring the light intensity diffracted from the pattern.
A. Buka, A. N. Trufanov, H. Amm, L. Kramer, L. Kramer, L. M. Blinov, M. I. Barnik, N. Felici, N. V. Madhusudana, Nándor Éber, P. G. de Gennes, Tibor Tóth-Katona, Ágnes Buka   +12 more
core   +1 more source

A direct approach to amines with remote stereocentres by enantioselective CuH-catalysed reductive relay hydroamination [PDF]

, 2015
Amines with remote stereocentres (stereocentres that are three or more bonds away from the C–N bond) are important structural elements in many pharmaceutical agents and natural products.
Buchwald, Stephen Leffler, Niljianskul, Nootaree, Zhu, Shaolin   +2 more
core   +1 more source

Predicting Atomic Charges in MOFs by Topological Charge Equilibration

Advanced Functional Materials, EarlyView.
An atomic charge prediction method is presented that is able to accurately reproduce ab‐initio‐derived reference charges for a large number of metal–organic frameworks. Based on a topological charge equilibration scheme, static charges that fulfill overall neutrality are quickly generated.
Babak Farhadi Jahromi, Sumukh Shankar Sharadaprasad, Rochus Schmid   +2 more
wiley   +1 more source

Crystal structures of (±)-(1SR,5SR,6SR,7SR,10SR,11SR,13RS,14SR)-13-hydroxy-7-methoxymethoxy-11,15,18,18-tetramethyl-3-oxo-2,4-dioxatetracyclo[12.3.1.01,5.06,11]octadec-15-en-10-yl benzoate, its 13-epimer and 13-one derivative

Acta Crystallographica Section E: Crystallographic Communications, 2015
The title compounds, C29H38O8·0.25C5H12, (A), C29H38O8, (B), and C29H36O8, (C), are tetracyclic benzoates possessing a taxane skeleton with a fused dioxolane ring as the core structure.
Takeshi Oishi, Keisuke Fukaya, Yu Yamaguchi, Tomoya Sugai, Ami Watanabe, Takaaki Sato, Noritaka Chida   +6 more
doaj   +1 more source

4-Formyl-2-nitrophenyl 3-nitro-2-methylbenzoate [PDF]

, 2014
In the title formyl nitro aryl benzoate derivative, CH NO, the benzene rings form a dihedral angle of 4.96(3)°. The mean plane of the central ester group, C-O-C-(=O)-C (r.m.s.
Alan R. Kennedy, Etter, Farrugia, Geraldine Hernández, Macrae, Moreno-Fuquen, Moreno-Fuquen, Nardelli, Rodolfo Moreno-Fuquen, Sheldrick   +9 more
core   +2 more sources

Sustainable Catalyst‐Free PLG Networks: Recyclability, Biodegradability, and Functional Performance

Advanced Functional Materials, EarlyView.
A catalyst‐additive free covalent adaptable network is developed from star‐shaped poly(lactide‐co‐glycolide) cross‐linked with pyromellitic dianhydride, enabling internal carboxylic acid‐driven transesterification. The resulting biodegradable network exhibits mechanical robustness (Young's modulus ≈1.6 GPa), complete recyclability, rapid biodegradation
Lars Schwarzer, Emilia Fulajtar, Seema Agarwal   +2 more
wiley   +1 more source

Sodium benzoate and potassium sorbate preservatives in food stuffs in Iran [PDF]

, 2015
A high-performance liquid chromatography method was applied for the determination of the levels of benzoate and sorbate in 400 food samples, including pickled cucumbers, canned tomato pastes, sour cherry jams, soft drinks, fruit juices and dairy products
Akbari Azam, M., Amirpour, M., Arman, A., Moradi-Khatoonabadi, Z., Yolmeh, A.   +4 more
core  

Directed assembly via selectively positioned host functionality [PDF]

, 2013
Introduction of distal carboxylic acid groups over two positions at the upper-rim of a di-O-alkylcalix[4]arene provides facile control over coordination polymer or discrete metal-organic capsule formation.
Beavers, Christine M, Cholewa, Piotr P, Dalgarno, Scott J, Teat, Simon J   +3 more
core   +1 more source