Results 101 to 110 of about 3,016,957 (322)

3'-R-Spiro[cycloalkyl-1(2), (hetaryl-3(4), 6'-[1,2,4]triazino[2,3-c]quinazoline]-2'(7'H)-2-оnes as a perspective class of compounds with actoprotective activity

Zaporožskij Medicinskij Žurnal, 2017
Quinazolines and their derivatives are a perspective class of compounds with versatile biological activities. Their representatives are used in medical practice as sleeping, diuretic, antimicrobial and antitumor drugs.
O. S. Kolomoets, О. Yu. Voskoboynik, I. S. Nosulenko, O. V. Krivoshey, A. I. Avramenko, G. G. Berest, S. I. Kovalenko   +6 more
doaj   +1 more source

MXene‐Engineered Cs2AgBiBr6 Perovskite Solar Cells: Rational Screening and Interfacial Dynamics for Lead‐Free Photovoltaics

Advanced Science, EarlyView.
The first strategic screening of M2X‐type MXenes for heterojunction design with Cs2AgBiBr6 is investigated by theory and experimental validation, revealing the role of transition metal layers, surface terminations, and work functions in enhanced photovoltaic performances.
Lin Yang, Tianfang Zheng, Ziyan Liu, Naoyuki Shibayama, Peng Li, Jiangang Ma, Xintong Zhang, Hancheng Zhu, Xiao‐Feng Wang, Haiyang Xu, Yichun Liu   +10 more
wiley   +1 more source

Entry to new spiroheterocycles via tandem Rh(II)-catalyzed O–H insertion/base-promoted cyclization involving diazoarylidene succinimides

Beilstein Journal of Organic Chemistry
A facile approach to novel medicinally relevant spiro heterocyclic scaffolds (namely furan-2(5H)-ones, tetrahydrofurans and pyrans spiro-conjugated with the succinimide ring) has been developed.
Alexander Yanovich, Anastasia Vepreva, Ksenia Malkova, Grigory Kantin, Dmitry Dar’in   +4 more
doaj   +1 more source

Microwave-Assisted Synthesis and Antimicrobial Evaluation of Novel Spiroisoquinoline and Spiropyrido[4,3-d]pyrimidine Derivatives

Molecules, 2015
Bromination of N-substituted homophthalimides and tetrahydropyrido[4,3-d]- pyrimidine-5,7-diones produces 4,4-dibromohomophthalimide and 8,8-dibromo-tetrahydropyrido[4,3-d]pyrimidine-5,7-dione derivatives, respectively, that can be used as precursors for
Rasha M. Faty, Mohamed S. Rashed, Mohamed M. Youssef   +2 more
doaj   +1 more source

Formation and Transformation of Carbon Ring Compounds. Part I. Selenium Dehydrogenation of 1 :2:3 :4-Tetrahydronaphthalene-3 : 3-spiro-cyclopentane. [PDF]

, 1934
SURESH CHANDRA SEN GUPTA
openalex   +1 more source

CO2‐DBU‐Triggered Photoredox‐Catalyzed Direct α‐C‐H Alkylation of Alcohols

Advanced Science, EarlyView.
An efficient photoinduced and metal‐free method is developed for direct α‐C–H monoalkylation of alcohols utilizing the CO2‐DBU system as the hydrogen bond acceptor (HBA) in the presence of H2O, allowing for selective functionalization of alcohols with a broad substrate scope.
Zeyu Zhang, Zongchang Han, Yuhao Shang, Han‐Shi Hu, Jun Li, Chanjuan Xi   +5 more
wiley   +1 more source

Unveiling Charge Transfer and Recombination Dynamics in 3D/2D Heterostructure via Ultrafast Spectroscopy for Efficient Perovskite Solar Cells

Advanced Science, EarlyView.
Charge transfer and recombination dynamics at 3D/2D perovskite heterostructure have been fully investigated via combined state‐of‐the‐art ultrafast spectroscopies, aiding to design of the desired 3D/2D perovskite heterostructure and thus push 3D/2D perovskite solar cell technology forward.
Di Li, Junhan Xie, Shaobing Xiong, Xiaoxiao Zang, Zhennan Lin, Yuning Wu, Weimin Liu, Bo Li, Zhenrong Sun, Junhao Chu, Qinye Bao   +10 more
wiley   +1 more source

In Situ Polymerization Controlled Growth of Perovskite via Benzoic Acid Crosslinking Agent for Highly Efficient and Mechanically Robust Flexible Perovskite Solar Cell

Advanced Science, EarlyView.
This study proposes a novel strategy to improve the performance of perovskite solar cells through the incorporation of the crosslinking agent 4‐HBA into the perovskite layer. The multifunctional properties of 4‐HBA contribute to power conversion efficiencies of 24.76% for rigid devices and 22.73% for flexible devices, both exhibiting remarkable ...
Yankun Yang, Na Yang, Chenxi Zhang, Shiqi Li, Yang Hao, Qinjun Sun, Zhihui Chen, Shengzhong (Frank) Liu, Fei Guo, Jianfeng Lu, Yuying Hao   +10 more
wiley   +1 more source

Photochemical Rearrangement of 8- methyl Spiro [2.5] oct-7-en-4-one to 4-methyl Spiro [2.5] oct-4-en-6-one [PDF]

Journal of Sciences, Islamic Republic of Iran, 1989
Irradiation of &methyl spiro [2.5] oct-7-en-4-one through its singlet excited state resulted in the formation of 4-methyl spirO [2.5] oct-4-en -6-one. We have used the cyclopropyl moiety in the molecule as a probe to study the operating mechanism in the
doaj  

Structure and Reactivity of Small Ring Compounds. I. Solvolyses of Spiro[2,4]hept-4-yl and Spiro[2,5]oct-4-yl 3,5-Dinitrobenzoates [PDF]

, 1967
Takashi Tsuji, Ichiro Moritani, Shinya Nishida   +2 more
openalex   +1 more source