Synthesis of expanded alkylphenoxythiadiazole macroheterocycles

Synthesis of Tri(4-tritylphenoxy)- and Hexa(4-methylphenoxy)-Substituted Hemihexaphyrazines

“…Thus, the strong absorbance bands at 398 and 419 nm (3) and at 393 and 414 nm (4) dominate in the spectra of both compounds while the bands of lower intensities are located at about 450-505 nm. These spectra are similar to the spectrum of substituted macroheterocyclic compound of ABABAB-type, [26,31] and it can evidence the similarity of their chromophore systems.…”

“…This work is considered to be a continuation of our recent research [22,26] and its main objective is synthesis and properties of new representatives of tri-and hexasubstituted hemihexaphyrins bearing the bulky substituents on their periphery.…”

Thiadiazole-Сontaining Macrocycles as Core-Modified Analogues of Phthalocyanine

“…[13,21] The reaction run has been monitored by TLC and UV-vis spectroscopy. The compounds 3a,b were purified by column chromatography on aluminum oxide using dichloromethane as an eluent.…”

“…The compounds were characterized by IR, 1 H NMR and UV-vis spectroscopy, mass-spectrometry, and elemental analysis. [21] Condensation of equimolecular amounts of 3,4-bis(4-tert-butylphenyl)pyrroline-2,5-diimine with 2,5-diamino-1,3,4-thiadiazole yielded compound 4 with an increased coordination cavity; the compound incorporates substituted pyrrole fragments into the macrosystem [22] (Scheme 4).…”

Homotrinuclear Сomplexes of [30]Trithiadodecaazahexaphyrine with Transition Metals: Ni(II), Cu(II) and Mn(II)

“…[7][8][9] Among expanded compounds, Mc's of ABABAB-type (hemihexaphyrazine, H 3 Hhp) containing six consecutively interlinked 1,3,4-thiadiazole (A) and isoindole (B) subunits bridged by nitrogen atoms [10,11] induce a particular interest. Indeed, various substituted macroheterocyclic compounds of this type were synthesized to date [12][13][14][15][16][17][18] and their structures were confirmed by gas electron diffraction (GED) [19,20] and single crystal X-ray diffraction [21] methods. It was established that compounds of this type have a nonaromatic macrocyclic backbone containing 30 carbon and nitrogen atoms which form an expanded coordination cavity compared to that of porphyrins and phthalocyanines.…”