pyrene derivativesTetrahydropyrene (Ia) is dibrominated to give (Ib) which is aromatized by reaction with bromine in carbon disulfide, yielding the dibromopyrene (II).doi:10.1002/chin.198707180LEE, H.HARVEY, R. G.WILEY‐VCH Verlag GmbHCheminform...
2,7-Dibromo-9,9-diphenyldibenzosilole (5). Under a dry argon atmosphere, 13.30 ml (21.2 mmol) of 1.6 mol lÀ1 t-butyllithium in heptane was added drop wise to the THF solution (60 ml) of 4 (3.0 g, 5.32 mmol) over 2 h at À78 1C. After the reaction mixture was stirred ...
FIELD: chemistry.;SUBSTANCE: invention relates to a method of producing 5,5'-(2,3,7,8-bis-(9H,10H-anthracene-9,10-diiyl)pyrene-1,6-diiyl)bis(2-dodecylthiophene), which includes reacting 1,6-dibromopyrene with 2-dodecyl-5-tributylstannyl thiophene by a Stille method to obtain a first...
The peripheral functionalization was achieved by means of a Suzuki–Miyaura coupling reaction between 6,7-dibromo-2,3-dicyanonaphthalene (1) and the corresponding boronic acids, following our previously reported methodology [60]. This substitution pattern was chosen in accordance with our recent report...
used as the electrophile, tribenzylamine7was prepared from nitrogen in 81% isolated yield. Using this developed method, polysubstituted pyrrole9was also prepared directly from dinitrogen and 1,4-dibromo-1,3-butadiene8in good efficiency, further extending the application of this chemistry (Fig.3b)....
The quaternary bromide salts were synthesized from N-heterocyclic nucleophiles (aminopyrazine, 2-aminopyrimidine) (110) and bis(alkyl bromide) (1,6-dibromohexane, 1,3-bis(bromomethyl)benzene, 1,4-dibromobutane and 1,5-dibromopentane) (212) overnight at 70 °C using DMSO (10 mL) as ...
Synthesis of cyclo [6]paraphenylene [3]1,4-naphthylene 91. Synthesis of the pyrene-containing carbon nanoring, cyclo [12]paraphenylene [2]2,7-pyrenylene (94) was reported by Itami in 2014 (Figure 28) [44]. The synthetic route was based on the synthesis of [16]CPP. Macrocycle 93 wa...
(XRITC); fluorescamine; IR144; IR1446; Malachite Green isothiocyanate; 4-methylumbelliferoneortho cresolphthalein; nitrotyrosine; pararosaniline; Phenol Red; B-phycoerythrin; o-phthaldialdehyde; pyrene and derivatives: pyrene, pyrene butyrate, succinimidyl 1-pyrene; butyrate quantum dots; Reactive Red ...
2,7-Dibromonaphthalene and 4,4′-dibromobiphenyl in the synthesis of oxadiamine N, N, N′, N′-tetraaryl derivatives and studies of formation of bismacrocyclic compounds from them Article 01 November 2021 Synthesis of heterofunctional 1,3,7-triazapyrene derivatives by SNH and SNAr reactions...
Baldridge and Siegel reported a trio of annulated corannulenes (Fig. 5c)42. 1,6-dibromo-2,5-dimethylcorannulene58is coupled with 2-fluoro-phenyl boronic acid and 2-chloro-phenyl boronic acid to give59a(X = Cl) and59b(X = F) respectively.59awas converted to60via a palladium-cat...