Results 101 to 110 of about 30,744 (240)

Crystal structures of butyl 2-amino-5-hydroxy-4-(4-nitrophenyl)benzofuran-3-carboxylate and 2-methoxyethyl 2-amino-5-hydroxy-4-(4-nitrophenyl)benzofuran-3-carboxylate

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2019
The title benzofuran derivatives 2-amino-5-hydroxy-4-(4-nitrophenyl)benzofuran-3-carboxylate (BF1), C19H18N2O6, and 2-methoxyethyl 2-amino-5-hydroxy-4-(4-nitrophenyl)benzofuran-3-carboxylate (BF2), C18H16N2O7, recently attracted attention because of ...
Rosita Diana   +4 more
doaj   +1 more source

Pharmacology of novel psychoactive substances [PDF]

open access: yes, 2016
This PhD work consists of an in vitro and in vivo part. In the in vivo part, we investigated the role of dopamine in the acute clinical effects of 3,4-methylenedioxymethamphetamine (MDMA, “ecstasy”) in healthy human subjects.
Rickli, Anna
core   +1 more source

Crystal structure of 2-(5-methoxy-1-benzofuran-3-yl)acetic acid

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
The benzofuran residue in the title compound, C11H10O4, is essentially planar (the r.m.s. deviation for the nine non-H atoms = 0.011 Å). While the methoxy group is coplanar with the fused ring system [C—C—O—C torsion angle = 3.1 (3)°], the acetic acid ...
Ramakrishna Gowda   +3 more
doaj   +1 more source

Functionalized Diaryliodonium Salts with N‐Reactive Amides: Versatile Reactivity for Constructing Benzo‐Fused Nitrogen Heterocycles

open access: yesAdvanced Synthesis &Catalysis, Volume 368, Issue 9, 5 May 2026.
A practical one‐pot strategy for the synthesis of ortho‐amide‐functionalized TMP‐iodonium(III) salts has been developed. These iodonium salts exhibited distinct reactivities toward N‐, O‐, and S‐nucleophiles, facilitating arylocyclization and producing a variety of benzo‐fused heterocycles under mild conditions.
Naoki Miyamoto   +4 more
wiley   +1 more source

Anion‐Controlled Structural Interconversion of Palladium Cages Enables Separations by Selective Guest Capture and Release

open access: yesAngewandte Chemie, Volume 138, Issue 16, 13 April 2026.
We report a pair of interconvertible palladium(II) cages assembled from an asymmetric ligand, whose switching is triggered by specific counter‐anions, tetrafluoroborate (BF4−) and bis(trifluoromethanesulfonyl)imide (NTf2−). Their complementary guest preferences enable orthogonal, multi‐cycle catch‐and‐release, exemplified by the selective purification ...
Zhe Li   +2 more
wiley   +2 more sources

5-Chloro-3-(4-fluorophenylsulfonyl)-2,7-dimethyl-1-benzofuran

open access: yesActa Crystallographica Section E, 2014
In the title compound, C16H12ClFO3S, the dihedral angle between the plane of the benzofuran ring system [r.m.s. deviation = 0.007 (1) Å] and that of the 4-fluorophenyl ring is 76.11 (5)°.
Hong Dae Choi, Uk Lee
doaj   +1 more source

Catalytic Enantioselective Synthesis of Conformationally Stable C(sp2)−C(sp3) Naphthocoumarin Atropisomers

open access: yesAdvanced Synthesis &Catalysis, Volume 368, Issue 9, 5 May 2026.
The enantioselective synthesis of naphthocoumarin adducts via a tandem organocatalytic 1,4‐addition/decarboxylation delivers excellent control over a newly forged stereocenter and yields configurationally stable synclinal atropisomers. The process features broad substrate scope and scalability, and its structural and mechanistic foundations are ...
M. Chiara Cabua   +10 more
wiley   +1 more source

Ligand-Free Palladium-Catalyzed Oxyarylation of Dihydronaphthal­enes and Chromenequinone with o-Iodophenols and 3-Iodolawsone in PEG-400: An Efficient Synthesis of 5-Carbapterocarpans and Pterocarpanquinones [PDF]

open access: yes, 2015
Dihydronaphthalenes were oxyarylated with o-iodophenols, in PEG-400 at 140 or 170 °C, leading regio- and stereoselectively to 5-carbapterocarpans. By using Pd(OAc)2 (5–10 mol%) as precatalyst and Ag2CO3 (1.1 equiv) as base (conditions A), products were ...
Borges, Rackel H.F.   +6 more
core   +2 more sources

Desymmetrization of Pseudo‐para Diformyl[2.2]Paracyclophane via Brønsted Acid‐Catalyzed Reductive Amination

open access: yesAdvanced Synthesis &Catalysis, Volume 368, Issue 9, 5 May 2026.
A highly stereoselective desymmetrization of pseudo‐para diformyl[2.2]paracyclophanes is developed via chiral Brønsted acid‐catalyzed reductive amination. This protocol provides efficient access to enantiopure planar chiral paracyclophanes with broad substrate scope, excellent enantioselectivity, and versatile postsynthetic functionalization. Access to
Sandip Baban Shinde   +4 more
wiley   +1 more source

Benzofuranyl Esters: Synthesis, Crystal Structure Determination, Antimicrobial and Antioxidant Activities

open access: yesMolecules, 2015
A series of five new 2‐(1‐benzofuran‐2‐yl)‐2‐oxoethyl 4-(un/substituted)benzoates 4(a–e), with the general formula of C8H5O(C=O)CH2O(C=O)C6H4X, X = H, Cl, CH3, OCH3 or NO2, was synthesized in high purity and good yield under mild conditions.
C. S. Chidan Kumar   +9 more
doaj   +1 more source

Home - About - Disclaimer - Privacy