Azonia aromatic heterocycles as a new acceptor unit in D-π-A + vs D-A + nonlinear optical chromophores
作者:Tatiana Cañeque、Ana M. Cuadro、Raúl Custodio、Julio Alvarez-Builla、Belén Batanero、Pilar Gómez-Sal、Javier Pérez-Moreno、Koen Clays、Obis Castaño、José L. Andrés、Thais Carmona、Francisco Mendicuti、Juan J. Vaquero
DOI:10.1016/j.dyepig.2017.05.005
日期:2017.9
results of studies into their linear and non-linear optical properties and electrochemical data. Experimental and theoretical data show that quinolizinium-based chromophores may provide a new generation of second-order non-linear materials with enhanced performance. The first hyperpolarizabilities were measured by Hyper-Rayleighscattering experiments and the experimental data are supported by a theoretical
Palladium-Mediated Functionalization of Heteroaromatic Cations: Comparative Study on Quinolizinium Cations
作者:Domingo García-Cuadrado、Ana M. Cuadro、Bernardo M. Barchín、Ana Nuñez、Tatiana Cañeque、Julio Alvarez-Builla、Juan J. Vaquero
DOI:10.1021/jo060634+
日期:2006.10.1
cross-coupling reaction on heteroaromatic cations is described. A comparative study of the Stille and Suzuki reactions shows that only the Stillereaction is able to produce an efficient C−C bond formation between any of the four isomeric bromoquinolizinium bromides and a variety of stannanes. In the presence of the catalysts Pd(PPh3)4 or Pd2(dba)3P(o-Tol)3, vinyl, ethynyl, aryl, and heteroaryl groups are
作者:Domingo García、Ana M. Cuadro、Julio Alvarez-Builla、Juan J. Vaquero
DOI:10.1021/ol048368e
日期:2004.11.1
The four isomeric bromoquinolizium bromides reacted with aryl- and heteroarylacetylenes under Sonogashira conditions. The reactions proceed with moderate-to-high yields to afford aryl- and heteroarylethynyl quinolizium cations. This is the first reported example of the Sonogashira reaction on heteroaromatic cations, and it allowed easy access to potential pi-donor pi-acceptor systems bearing cationic units.
Sanders, G. M.; Dijk, M. van; Plas, H. C. van der, Journal of Heterocyclic Chemistry, 1983, vol. 20, p. 407 - 414
作者:Sanders, G. M.、Dijk, M. van、Plas, H. C. van der、Konijn, M.、Stam, C. H.
DOI:——
日期:——
Sanders, Georgine M.; Dijk, M. van; Plas, H. C. van der, Journal of Heterocyclic Chemistry, 1982, vol. 19, p. 797 - 800
作者:Sanders, Georgine M.、Dijk, M. van、Plas, H. C. van der