Synthesis of polyconjugated carbazolyl–oxazolones by a tandem hydrozirconation–Erlenmeyer reaction. Study of their hyperpolarizability values
摘要:
New push-pull systems with carbazole as donor moiety and oxazolone as electron withdrawing group have been synthesized by an AgClO4-catalyzed hydrozirconation and ulterior Erlenmeyer reaction. Studies carried out with the semiempirical quantum method PM3 (MOPAC93) pointed a low dependence of the hyperpolarizability value on the number of double bonds at the conjugated bridge by beta(0)proportional ton(0.8). Introduction of rigidity in the polyene chain or additional donor groups in the carbazole moiety pointed to exertion of a large effect on hyperpolarizability values that could avoid unnecessary efforts in costly path elongation synthesis. (C) 2002 Elsevier Science Ltd. All rights reserved.
Synthesis of polyconjugated carbazolyl–oxazolones by a tandem hydrozirconation–Erlenmeyer reaction. Study of their hyperpolarizability values
摘要:
New push-pull systems with carbazole as donor moiety and oxazolone as electron withdrawing group have been synthesized by an AgClO4-catalyzed hydrozirconation and ulterior Erlenmeyer reaction. Studies carried out with the semiempirical quantum method PM3 (MOPAC93) pointed a low dependence of the hyperpolarizability value on the number of double bonds at the conjugated bridge by beta(0)proportional ton(0.8). Introduction of rigidity in the polyene chain or additional donor groups in the carbazole moiety pointed to exertion of a large effect on hyperpolarizability values that could avoid unnecessary efforts in costly path elongation synthesis. (C) 2002 Elsevier Science Ltd. All rights reserved.
Synthesis of polyconjugated carbazolyl–oxazolones by a tandem hydrozirconation–Erlenmeyer reaction. Study of their hyperpolarizability values
作者:José Luis Dı́az、Belén Villacampa、Francisco López-Calahorra、Dolores Velasco
DOI:10.1016/s0040-4039(02)00806-7
日期:2002.6
New push-pull systems with carbazole as donor moiety and oxazolone as electron withdrawing group have been synthesized by an AgClO4-catalyzed hydrozirconation and ulterior Erlenmeyer reaction. Studies carried out with the semiempirical quantum method PM3 (MOPAC93) pointed a low dependence of the hyperpolarizability value on the number of double bonds at the conjugated bridge by beta(0)proportional ton(0.8). Introduction of rigidity in the polyene chain or additional donor groups in the carbazole moiety pointed to exertion of a large effect on hyperpolarizability values that could avoid unnecessary efforts in costly path elongation synthesis. (C) 2002 Elsevier Science Ltd. All rights reserved.