An article Effect of Cp-Ligand Methylation on Rhodium(III)-Catalyzed Annulations of Aromatic Carboxylic Acids with Alkynes: Synthesis of Isocoumarins and PAHs for Organic Light-Emitting Devices WOS:000516845200010 published article about INTERNAL ALKYNES; BENZOIC-ACIDS; CATALYZED ANNULATION; OXIDATIVE ANNULATION; ARYL IODIDES; COMPLEXES; ELECTRON; ARENE in [Molotkov, Alexander P.; Arsenov, Mikhail A.; Kapustin, Daniil A.; Muratov, Dmitry, V; Shepel’, Nikolay E.; Fedorov, Yury, V; Smol’yakov, Alexander F.; Loginov, Dmitry A.] Russian Acad Sci, AN Nesmeyanov Inst Organoelement Cpds, 28 Ul Vavilova, Moscow 119991, Russia; [Smol’yakov, Alexander F.; Knyazeva, Elena, I] RUDN Univ, Fac Sci, 6 Miklukho Maklaya St, Moscow 117198, Russia; [Smol’yakov, Alexander F.] Plekhanov Russian Univ Econ, Stremyanny Per 36, Moscow 117997, Russia; [Lypenko, Dmitry A.; Dmitriev, Artem, V; Aleksandrov, Alexey E.; Maltsev, Eugeny, I] Russian Acad Sci, AN Frumkin Inst Phys Chem & Electrochem, Leninsky Prosp 31,Bld 4, Moscow 119071, Russia in 2020.0, Cited 72.0. The Name is 4-Nitrobenzoic acid. Through research, I have a further understanding and discovery of 62-23-7. Recommanded Product: 4-Nitrobenzoic acid
An efficient protocol was developed for the synthesis of pi-extended isocoumarins and polycyclic aromatic hydrocarbons based on the oxidative coupling of aromatic carboxylic acids with internal alkynes catalyzed by (cyclopentadienyl)rhodium complexes. The coupling chemoselectivity strongly depends on whether Cp or the methylated Cp* ligands are used. The pentamethyl derivative [Cp*RhCl2](2) predominantly gives isocoumarins, while the non-methylated complex [CpRhI2](n) produces naphthalene derivatives. The polyaromatic carboxylic acids (such as 1-naphthoic acid, 1-pyrenecarboxylic acid, fluorene-1-carboxylic acid, and dibenzofuran-4-carboxylic acid) are suitable for this approach. A mixture of Cp*H/RhCl3 can be used as a catalyst instead of [Cp*RhCl2](2). The structures of 3,4-diphenylindeno[1,2-h]isochromen-1(11H)-one and 7,10-dimethyl-8,9-diphenylbenzo[pqr]tetraphene were determined by X-ray diffraction. In addition, the optical properties of the prepared compounds were studied. 7,8-Diphenyl-10H-phenaleno[1,9-gh]isochromen-10-one was employed as an emissive layer for OLED manufacturing. The OLED emits yellow-green light with a maximum intensity 1740 cd . m(-2) at 15 V.
Recommanded Product: 4-Nitrobenzoic acid. About 4-Nitrobenzoic acid, If you have any questions, you can contact Molotkov, AP; Arsenov, MA; Kapustin, DA; Muratov, DV; Shepel’, NE; Fedorov, YV; Smol’yakov, AF; Knyazeva, EI; Lypenko, DA; Dmitriev, AV; Aleksandrov, AE; Maltsev, EI; Loginov, DA or concate me.
Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem