Oct 8, 2018 · Addition of an easily oxidized metal like iron (Fe), tin (Sn) or zinc (Zn) in the presence of acid, such as HCl (but often just written, “H+ “) will convert NO 2 to NH 2. Hydrogenation over a palladium, platinum, or nickel catalyst will also convert NO 2 to NH 2 .

A well-defined manganese (II)-NNO pincer complex catalyzes efficient catalytic hydrosilylations of nitroarenes to form the corresponding anilins under solvent-free conditions. This base-metal-catalyzed hydrosilylation is an easy and sustainable alternative to classical hydrogenation.

Alkyl and aryl nitro compounds behave differently. Most useful is the reduction of aryl nitro compounds. The reduction of nitroaromatics is conducted on an industrial scale. [1] . Many methods exist, such as: Catalytic hydrogenation using: Raney nickel [2] or palladium-on-carbon, [3][4][5] platinum (IV) oxide, or Urushibara nickel. [6]

Dec 21, 2017 · The best method for reduction of NO2 to NH2 is to use H2 /Pt in acetic acid. This gives the clean reaction product.Fe in aq.HCl is cheaper but the quality of the product is not so good.

Jun 6, 2001 · The reaction system produced by 193 nm flash photolysis of a mixture of NH 3 and NO 2 has been investigated experimentally and modeled.

Aug 18, 2023 · Reduction of the nitro group (−NO 2) to the amino functionality (−NH 2) is one of the most important functional group transformations in organic chemistry.

Aug 22, 2013 · High- and low-pressure limit rate coefficients for the various product channels of NH 2 + NO 2 are determined from the ab initio TST-based master equation calculations for the temperature range 300–2000 K.

The use of tin (II) chloride (SnCl2) provides a mild method for reducing nitro groups to amines in the presence of other reducible groups. Sodium sulfide (Na2S) can be a useful altenative for substrates where hydrogenation or acidic conditions are not compatible.

Sep 19, 2013 · High- and low-pressure limit rate coefficients for the various product channels of NH2 + NO2 are determined from the ab initio TST-based master equation calculations for the temperature range 300-2000 K.

The best reducing agent to convert NO2 group to NH2 group is SnCl2 . However, you need con. HCl during reduction under reflux condition.