Results 71 to 80 of about 3,133 (222)

Direct Evidence of Cis Addition in the Catalytic Hydrocarboxylation of Acenaphthylene to Acenaphthene-1-carboxylic Acid

, 2016
The hydrocarboxylation of acenaphthylene with the [PdCl2(CH3CN)2] + nPAr3 catalytic system gave good yields of acenaphthene-1-carboxylic acid, after it was found that the chemoselectivity over oligomeric side products is highly dependent on the ...
Julio Real (2732092), Esther Prat (794256), Sergio González-Cabello (3076914), Montserrat Pagès (213686), Alfonso Polo (2732095)   +4 more
core   +1 more source

Advances in Enaminomaleimides Chemistry: Synthesis, Chemical Applications, and Perspectives

ChemistryEurope, Volume 3, Issue 5, September 18, 2025.
Enaminomaleimides are versatile building blocks for the construction of functionalized heterocycles. Their unique nucleophilic character, contrasting with the classical electrophilic nature of maleimides, enables diverse synthetic applications, showing promising potential in both materials science and medicinal chemistry.
Adrián López‐Francés, Birane Diop, Xingyu Jiang, Jean Rodriguez, Muriel Amatore, Thierry Constantieux   +5 more
wiley   +1 more source

Photodimerization of acenaphthylene within a nanocapsule: excited state lifetime dependent dimer selectivity

, 2007
Direct excitation of acenaphthylene molecules included in a syn fashion within the octa acid nanocapsule dimerizes quantitatively to a syn dimer, and upon triplet sensitization, yields both syn and anti dimers probably by reacting within and outside the ...
Ramamurthy, V, Kaanumalle, Lakshmi S., Kaanumalle, Lakshmi S, Ramamurthy, V.   +3 more
core   +1 more source

Ethyl 7′-(6-benzyloxy-2,2-dimethyltetrahydrofuro[3,2-d][1,3]dioxol-5-yl)-2-oxo-5′,6′,7′,7a'-tetrahydro-1′H,2H-spiro[acenaphthylene-1,5′-pyrrolo[1,2-c][1,3]thiazole]-6′-carboxylate

Acta Crystallographica Section E, 2012
In the title compound, C34H35NO7S, the acenaphthylene unit is essentially planar (r.m.s. deviation = 0.0335 Å). The pyrrolothiazole ring system is folded about the bridging N—C bond; the thiazolidine and pyrrolidine rings ...
G. Jagadeesan, K. Sethusankar, R. Prasanna, R. Raghunathan   +3 more
doaj   +1 more source

Ring Contraction of Cyclooctatetraenes toward Non‐Benzenoid Polycyclic Aromatic Hydrocarbons by Au(111)‐Catalysis and Bulk Pyrolysis

Chemistry – A European Journal, Volume 31, Issue 40, July 17, 2025.
The Au(111)‐catalyzed cyclodehydrogenation of tetraphenylated DA‐COT and TA‐COT is compared with bulk pyrolysis. On Au(111), a strain‐induced contraction of the central COT unit toward six‐membered rings occurs. For TA‐COT, a rearrangement toward a non‐benzenoid polycyclic aromatic hydrocarbon containing five‐ and seven‐membered rings is observed as an
Svenja Weigold, Ye Liu, Hailong Li, Qiang Chen, Xuechao Li, Haiming Zhang, Miao Xie, Frank Rominger, Jan Freudenberg, Uwe H. F. Bunz, Klaus Müllen, Lifeng Chi   +11 more
wiley   +1 more source

Cyclic conjugation in benzo-annelated triphenylenes [PDF]

Journal of the Serbian Chemical Society, 2010
Cyclic conjugation in benzo-annelated triphenylenes was studied by means of the energy effect (ef) and the π-electron content (EC) of the six-membered rings.
SLAVKO RADENKOVIĆ, SVETLANA JEREMIĆ, IVAN GUTMAN   +2 more
doaj  

Sediments from stormwater drainage system as sorbents of organic and inorganic pollutants

E3S Web of Conferences, 2017
The study presents the results of tests aimed at determining variations in concentrations of polycyclic aromatic hydrocarbons (naphthalene, acenaphthylene, acenaphthene, fluorene, phenanthrene, anthracene, fluoranthene, pyrene, benzo[a]anthracene ...
Sałata Aleksandra, Dąbek Lidia
doaj   +1 more source

Exposure to Rice Straw Ash Alters Survival, Development and Microbial Diversity in Amphibian Tadpoles

Ecology and Evolution, Volume 15, Issue 7, July 2025.
This study examined how aqueous ash extracts (AEA) from rice straw burning impact R. dybowskii tadpoles, revealing that higher concentrations (up to 6 g L−1) over 28 d reduced survival, impaired growth, and disrupted skin and gut microbiota diversity, with polycyclic aromatic hydrocarbons (PAHs) detected in water.
Qing Tong, Yue‐liang Pan, Qiu‐ru Fan, Wen‐jing Dong, Xin‐zhou Long, Ming‐da Xu, Li‐yong Cui, Zhi‐wen Luo   +7 more
wiley   +1 more source

Ultrasound-assisted one-pot multicomponent 1,3-dipolar cycloaddition strategy: combinatorial synthesis of spiro-acenaphthylene-S,S-acetal and 2H-pyranone derivatives

, 2018
The stereo/regio/chemoselective syntheses of a library of novel spiro[acenaphthylene-1,3′-pyrrolizin]-2-one and spiro[acenaphthylene-1,5′-pyrrolo[1,2-c]thiazol]-2-one have been achieved through 1,3-dipolar cycloaddition.
Sivakumar Shanmugam, Solaimalai Thimmarayaperumal   +1 more
core   +1 more source

Synthesis of dihydro-2H-spiro [acenaphthylene-1,3′-pyrazole]: An approach toward apixaban moeity

, 2022
The 1,3-dipolar cycloaddition (DC) reaction of substituted acenaphthenone-2-ylidine ketone with nitrile imines to obtain the corresponding dihydro-2H-spiro [acenaphthylene-1,3′-pyrazole] cycloadducts in good to excellent yields (up to 92%) with ...
Rajagopal Srinivasan (2739496), V. Nookaappa Rao Gorli (11921553)   +1 more
core   +1 more source