Tuning the HOMO–LUMO gap of donor-substituted benzothiazoles

Reactions of Alkynyl‐ and 1,1′‐Dialkynylferrocenes with Tetracyanoethylene – Unanticipated Addition at the Less Electron‐Rich of Two Triple Bonds

“…[19] Bruce et al, who used metal acetylide substituted ferrocenes as substrates, have explored this chemistry in depth. [25][26][27][28][29][30][31][32] Very recently, related reactions of diferrocenyl substrates have been reported. [25][26][27][28][29][30][31][32] Very recently, related reactions of diferrocenyl substrates have been reported.…”

“…[20][21][22][23][24] Misra et al as well as Shoji et al recently reported similar reactions for compounds with more-extended π systems such as triphenylamine, truxene, cycloheptafuranone, or azulene moieties attached to ferrocenylethynyl groups. [25][26][27][28][29][30][31][32] Very recently, related reactions of diferrocenyl substrates have been reported. [33] Diederich et al, who used 4-[4-(dimethylamino)phenyl]-1-ferrocenylbutadiyne as the substrate, elegantly demonstrated the need for electron-rich triple bonds in the reaction sequence.…”

Novel pyran based dyes for application in dye sensitized solar cells

“…As shown in previous works reported in the literature, the use of functionalizing group with different electron acceptor strength on the same molecular fragment results in the tuning of the optical absorption properties of the dyes so that different parts of the visible spectrum can be covered [12,21,22]. The pyran core is symmetrically linked to phenothiazine groups; phenothiazine is a heteroaromatic system characterized by a strong electron donor ability as a consequence of the presence of electron rich nitrogen and sulfur atoms contained in it.…”

The production of novolac oligomers

“…Реакция кросс-сочетания по меха-низму Соногаширы между арилгалоге-нидом и терминальным алкином стала одной из наиболее широко используе-мых реакций, которые применяют для образования углерод-углеродной свя-зи в органической химии [20][21][22][23][24].…”

“…The reaction has been proposed as effective method for the synthesis of dendrimers, conjugated oligomers and polymers, substituted alkynes. They are also intermediates in the synthesis of natural products, pharmaceuticals, optical materials and other [20][21][22][23][24].…”