Letters in Organic Chemistry - Volume 21, Issue 12, 2024

In oxidative coupling, two molecules combine with the help of different oxidants and transition metals. It is used to form various natural and synthetic compounds. Oxidative coupling reactions catalyzed by transition metals (Pd or Cu), Iodine, Cobalt, Ti, etc, are used widely for the synthesis of pyrroles. Pyrrole is a 5-membered heterocyclic ring structure that consists of a single nitrogen. Several methods have been Read More

The acyl urea functionality and related analogs are increasingly used in medicinal chemistry and drug design to prove well-defined pharmacological actions and optimal physicochemical properties. This review paper aimed to summarize information related to synthesis methods of acyl urea derivatives, marketed products, and patents to explore their applications in counteracting CNS-related diseases by multiple targeting. Co Read More

A novel series of Apigenin bioisosteres [1(4-chlorophenyl)-3-phenyl prop-2-ene-1-one] non-cyclic derivatives (4a-4c) and [7-hydroxy-2-phenyl-4H-chromen-4-one] cyclic derivatives (9a- 9d) were synthesized. The newly synthesized apigenin bioisosteres were confirmed using UV, IR, NMR, and mass spectroscopic methods. The antioxidant, antibacterial, and anti-cancer activities of all newly synthesized compounds were assesse Read More

New calamitic liquid crystals, 4-[{[4-(diethylamino)phenyl]methylidene}amino]phenyl 4- alkyloxybenzoate (nEABAA) containing mesogenic core system which made of three phenyl rings were reported. The ester and imine linkages connected the phenyl rings. At one end of the molecule, the core system was attached to an alkyloxy chain with a variable length -(CH2)n- (where n = 2-10, 12, 14, 16 and 18). At the other end of t Read More

Dehydro-7,8-aryl-himachalene is a desired natural benzocycloheptene sesquiterpene found in the essential oil of Atlas cedar (Cedrus atlantica) in minor quantities. Herein, we report a simple and environmentally benign synthesis of this molecule via the aromatization of himachalene mixture (the major constituent of the same oil). The synthesis of the desired compound has been achieved by iodine/DMSO-mediated aromatizat Read More

A highly efficient and simple cross-coupling reaction of N-aryl aluminum reagents with Naryl thiosuccinimides for the synthesis of diarylsulide derivatives using CuCl (20 mol%) as a catalyst is reported. Under the optimum reaction conditions, the coupling reaction between aryl aluminum reagents with different substituents and N-aryl thiosuccinimides with different substituents can be carried out smoothly with 18-94% isol Read More

Our current work's primary goal is to create novel heterogeneous gallium sulfide (Ga2S3) nanocatalysts and investigate their catalytic activity in the synthesis of 3,3-(arylmethylene)-bis-(4- hydroxycoumarin) derivatives without use of solvent. FT-IR, XRD, SEM, and EDX analysis characterized the synthesized gallium sulfide (Ga2S3) nanomaterial catalysts. This method's main benefits are its short reaction time, solvent-free conditio Read More