Early View Wiley/Wiley-VCH

Pest Management Science

Cucumis metuliferus reduces Meloidogyne incognita virulence against the Mi1.2 resistance gene in a tomato–melon rotation sequence

Published: 16 January 2019

Author(s): Alejandro Expósito, Sergi García, Ariadna Giné, Nuria Escudero, Francisco Javier Sorribas

Abstract BACKGROUND Susceptible tomato cv. Durinta, ungrafted or grafted onto cv. Aligator resistant rootstock, both followed by the susceptible melon cv. Paloma, ungrafted or grafted onto Cucumis metuliferus BGV11135, and in the reverse order, were cultivated from 2015 to 2017 in the same plots in a plastic greenhouse, infested or not with Meloidogyne incognita. For each crop, soil nematode densities, galling index, number of eggs per plant and crop yield were determined. Virulence selection...

Journal of Heterocyclic Chemistry

Synthesis and Docking Studies of Some 1,2,3‐Benzotriazine‐4‐one Derivatives as Potential Anticancer Agents

Published: 16 January 2019

Author(s): Ahmed A. Fadda, Ehab Abdel‐Latif, Ahmed Fekri, Amal R. Mostafa

Newly synthesized 1,2,3‐benzotriazine‐4‐one derivatives substituted at position‐3 were characterized by various analytical and spectral techniques. The in vitro antitumor activity was evaluated against three different cell lines (liver cells cancer, colorectal cancer, and breast cancer), where compounds 7b, 15, and 25 showed strong antitumor activity with IC50 ranging from 5.54 to 16.26 μM. In addition, molecular modeling studies using MOE were performed to investigate their binding modes to...

Journal of Heterocyclic Chemistry

An Alternative Approach to the Synthesis of Parvistone C

Published: 16 January 2019

Author(s): Ramakrishnam Raju Addada, Venkata Reddy Regalla, Sivarami Reddy Gangireddy Venkata, Venkata Naresh Vema, Venkateswara Rao Anna

A stereoselective total synthesis of parvistone C, an oxygenated natural styryllactone, has been accomplished in excellent overall yield by employing asymmetric aldol reaction, asymmetric epoxidation and regioselective epoxide ring opening as the key steps. Our synthetic strategy is very simple, concise and no use of protecting groups.

Journal of Heterocyclic Chemistry

Biocatalytic Reduction of 2‐Monosubstituted 3‐Thiazolines Using Imine Reductases

Published: 16 January 2019

Author(s): Nadine Zumbrägel, Karla Wagner, Nils Weißing, Harald Gröger

The application of a straightforward biocatalytic technology for the reduction of racemic 2‐monosubstituted 3‐thiazolines, which are easily prepared via Asinger‐multicomponent reaction, is reported. The biocatalytic reduction yields racemic 2‐monosubstituted 3‐thiazolidines, which are difficult to be prepared by means of classic chemical routes, in moderate to high yields. Moreover, our study clarifies the stereochemical reaction course of the biocatalytic reduction. Furthermore, the...

Journal of Heterocyclic Chemistry

A Simple and Convenient Strategy for the Synthesis of Novel Ten, Twelve, and Fourteen‐membered Phosphorus Macrocyclic Compounds

Published: 16 January 2019

Author(s): Mohan Challam Challa, Balakrishna Avula, Sravya Gundala, Mallikarjuna Reddy Guda, Grigory V. Zyryanov, Suresh Reddy Cirandur, Bakthavatchala Reddy Nemallapudi

Synthesis of the title compounds 4(a–i) was accomplished through a two‐step process. The synthetic route involves the cyclization of equimolar quantities of 2,2′‐methylene(methyl)bis(4,6‐di‐tert‐butyl‐phenol) (1) with tris‐(2‐chloro‐ethyl) phosphite (2a), tris‐(2‐bromo‐ethyl) phosphine (2b), and tris‐bromo methyl phosphine (2c) in the presence of sodium hydride in dry tetrahydrofuran at 45–50°C. They were further converted to the corresponding oxides, sulfides, and selenides under N2...

Chemistry - A European Journal

A Metal‐Organic‐Framework‐Derived g‐C3N4/α‐Fe2O3 Hybrid for Enhanced Visible‐Light‐Driven Photocatalytic Hydrogen Evolution

Published: 16 January 2019

Author(s): Jing Liu, Xiuxia Zhao, Peng Jing, Wei Shi, Peng Cheng

Abstract As one of the most efficient systems for photocatalytic hydrogen evolution, the Z‐Scheme system, consisting of different semiconductors with a reversible donor–acceptor pair, has attracted great attention. Considering the non‐toxicity and low cost of photocatalysts, a series of g‐C3N4/α‐Fe2O3 hybrids were rationally constructed based on the Z‐Scheme mechanism for the first time, using a metal‐organic framework template approach that can fine tune the compositions and properties of the...

Chemistry - A European Journal

Extremely Photostable Electron‐Deficient Phthalocyanines that Generate High Levels of Singlet Oxygen

Published: 16 January 2019

Author(s): Taniyuki Furuyama, Yusuke Miyaji, Kazuya Maeda, Hajime Maeda, Masahito Segi

Abstract Invited for the cover of this issue is the group of Taniyuki Furuyama at Kanazawa University. The image depicts photostable electron‐withdrawing group substituted phthalocyanine against singlet oxygen. Read the full text of the article at 10.1002/chem.201805082.

Chemistry - A European Journal

Metal–Organic Framework Derived Hierarchical Co/C@V2O3 Hollow Spheres as a Thin, Lightweight, and High‐Efficiency Electromagnetic Wave Absorber

Published: 16 January 2019

Author(s): Chenhui Zhou, Chen Wu, Dong Liu, Mi Yan

Chemistry - An Asian Journal

Continuously Variable Regulation of the Speed of Bubble‐Propelled Janus Microcapsule Motors Based on Salt‐Responsive Polyelectrolyte Brushes

Published: 16 January 2019

Author(s): Yuxing Ji, Xiankun Lin, Daolin Wang, Chang Zhou, Yingjie Wu, Qiang He

Abstract The engineering of self‐propelled micro‐/nanomotors (MNMs) with continuously variable speeds, akin to macroscopic automobiles equipped with a continuously variable transmission, is still a huge challenge. Herein, after grafting with salt‐responsive poly[2‐(methacryloyloxy)ethyltrimethylammonium chloride] (PMETAC) brushes, bubble‐propelled Janus microcapsule motors with polyelectrolyte multilayers exhibited adjustable speeds when the type and concentration of the counterion was...

Chemistry - A European Journal

Recent Advances in Carbon Nanomaterials for Cancer Phototherapy

Published: 16 January 2019

Author(s): Bang‐Ping Jiang, Bo Zhou, Zhaoxing Lin, Hong Liang, Xing‐Can Shen

Abstract Carbon nanomaterials have received great attention from the scientific community over the past few decades because of their unique physical and chemical properties. In this minireview, we will summarize the recent progress of the use of various carbon nanomaterials in the field of cancer phototherapy. The structural characteristics of each category and the surface functionalization strategies of these nanomaterials will be briefly introduced before focusing on their therapeutic...