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Merck
  • Microwave-assisted improved synthesis of pyrrolo[2,3,4-kl]acridine and dihydropyrrolo[2,3,4-kl]acridine derivatives catalyzed by silica sulfuric acid.

Microwave-assisted improved synthesis of pyrrolo[2,3,4-kl]acridine and dihydropyrrolo[2,3,4-kl]acridine derivatives catalyzed by silica sulfuric acid.

Molecules (Basel, Switzerland) (2013-01-30)
Chengpao Cao, Changliang Xu, Wei Lin, Xuemei Li, Minghua Hu, Juxian Wang, Zhibin Huang, Daqing Shi, Yucheng Wang
RESUMO

An improved synthesis of multifunctionalized pyrrolo[2,3,4-kl]acridine derivatives with different substituted patterns using silica sulfuric acid (SSA) as a heterogeneous catalyst under microwave irradiation conditions was developed. The reaction could be conducted by using readily available and inexpensive substrates within short periods of 12-15 min. under microwave irradiation. Compared with the conventional methods, the remarkable advantages of this method are milder reaction conditions, operational simplicity, higher yields, short reaction times, and an environmentally friendly procedure.

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Sigma-Aldrich
Ácido sulfúrico, ACS reagent, 95.0-98.0%
Sigma-Aldrich
Ácido sulfúrico, 99.999%
Sigma-Aldrich
Ácido sulfúrico, puriss. p.a., for determination of Hg, ACS reagent, reag. ISO, reag. Ph. Eur., 95.0-97.0%
Sigma-Aldrich
Ácido sulfúrico, puriss., meets analytical specification of Ph. Eur., BP, 95-97%
Sigma-Aldrich
Ácido sulfúrico, puriss. p.a., ≥25% (T)
Supelco
Ácido sulfúrico, 0.1 M H2SO4 in water (0.2N), eluent concentrate for IC
Supelco
Ácido sulfúrico, for the determination of nitrogen, ≥97.0%