✦ LIBER ✦

Liquid-Liquid-Liquid Phase Transfer Catalysis: A Novel and Green Concept for Selective Reduction of Substituted Nitroaromatics

✍ Scribed by Ganapati D. Yadav; Sharad V. Lande

Publisher: John Wiley and Sons
Year: 2005
Tongue: English
Weight: 181 KB
Volume: 347
Category: Article
ISSN: 1615-4150
DOI: 10.1002/adsc.200404364

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The selective reduction of nitroaromatics to the corresponding amines is an important transformation since many aromatic amines exhibit biological activities and find a multitude of industrial applications, being intermediates for the synthesis of dyes, pharmaceuticals and agrochemicals. A variety of nitroaromatics dissolved in organic solvents was reduced by using aqueous sodium sulfide, and tetrabutylammonium bromide (TBAB) as the phase transfer catalyst by choosing appropriate concentrations which resulted in three immiscible liquid phases. Compared to L‐L PTC, the L‐L‐L PTC offers much higher rates of reaction, better selectivities and repeated use of catalyst. The selectivities for the desired products were 100%.

📜 SIMILAR VOLUMES

Synergism of Low Energy Microwave Irradi

Synergism of Low Energy Microwave Irradiation and Solid—Liquid Phase Transfer Catalysis for Selective Alkylation of Phenols to Phenolic Ethers.

✍ Ganapati D. Yadav; Priyal M. Bisht 📂 Article 📅 2005 🏛 John Wiley and Sons ⚖ 14 KB

Phase Transfer Catalysis in Solid—Liquid

Phase Transfer Catalysis in Solid—Liquid System as a Selective Method of Mono-alkylation of α-Sulfonyl Thioesters.

✍ Blanka Wladislaw; Liliana Marzorati; Regina M. A. Neves; Claudio Di Vitta 📂 Article 📅 2002 🏛 John Wiley and Sons ⚖ 31 KB

## Abstract For Abstract see ChemInform Abstract in Full Text.

Aminoalkylation of 10-Hydroxycamptotheci

Aminoalkylation of 10-Hydroxycamptothecin Using Methylene Chloride under Solid—Liquid Phase Transfer Catalysis: A New Approach for the Preparation of Topotecan.

✍ S. C. Puri; G. Handa; K. L. Dhar; O. P. Suri; G. N. Qazi 📂 Article 📅 2005 🏛 John Wiley and Sons ⚖ 85 KB

ChemInform Abstract: Novel Concise Synth

ChemInform Abstract: Novel Concise Synthesis of 2-Substituted 3,4-Dihydro-2H-1,4-benzoxazines by Ring Opening of Glycidols under Solid—Liquid Phase Transfer Catalysis Conditions.

✍ Domenico Albanese; Dario Landini; Michele Penso 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 33 KB

A Novel Class of Versatile Solvents for

A Novel Class of Versatile Solvents for Two-Phase Catalysis: Hydrogenation, Isomerization, and Hydroformylation of Alkenes Catalyzed by Rhodium Complexes in Liquid 1,3-Dialkylimidazolium Salts

✍ Dr. Yves Chauvin; Dr. Lothar Mussmann; Hélène Olivier 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 422 KB 👁 2 views