Search results
Results from the WOW.Com Content Network
The reaction has been the subject of several literature reviews. [1] [2] [3] The Nef reaction: 1. Salt of a nitroalkane 3. Ketone 4. Nitrous oxide. The reaction was reported in 1894 by the chemist John Ulric Nef, [4] who treated the sodium salt of nitroethane with sulfuric acid resulting in an 85–89% yield of nitrous oxide and at least 70% ...
These alkoxy radicals are susceptible to C—C fragmentation reactions, which explains the formation of a mixture of products. [5] Alternatively, nitroethane can be produced by the Victor Meyer reaction of haloethanes such as chloroethane, bromoethane, or iodoethane with silver nitrite in diethyl ether or THF.
Nitromethane reacts with solutions of sodium hydroxide or methoxide in alcohol to produce an insoluble salt of nitromethane. This substance is a sensitive explosive which reverts to nitromethane under acidic conditions and decomposes in water to form another explosive compound, sodium methazonate, which has a reddish-brown color:
In the so-called Ter Meer reaction (1876) named after Edmund ter Meer, [14] the reactant is a 1,1-halonitroalkane: The reaction mechanism is proposed in which in the first slow step a proton is abstracted from nitroalkane 1 to a carbanion 2 followed by protonation to an aci-nitro 3 and finally nucleophilic displacement of chlorine based on an ...
The Henry reaction is a classic carbon–carbon bond formation reaction in organic chemistry. Discovered in 1895 by the Belgian chemist Louis Henry (1834–1913), it is the combination of a nitroalkane and an aldehyde or ketone in the presence of a base to form β-nitro alcohols.
The 355 is a 2022 American action spy thriller film directed by Simon Kinberg from a screenplay by Theresa Rebeck and Kinberg, and a story by Rebeck. The film features an ensemble cast, starring Jessica Chastain, Penélope Cruz, Fan Bingbing, Diane Kruger, and Lupita Nyong'o as a group of international spies who must work together to stop a terrorist organization from starting World War III.
In his article highlighting the best movies of 2022, Richard Brody of The New Yorker said, "This year, it’s all the more important to offer a widely inclusive list, because a wide range of American filmmakers have caught up with the inescapable phenomenon of the recent past: the resurgence of openly anti-democratic forces and brazenly hate-driven ideologies, the crisis of illegitimate rule ...
Scream is a 2022 American slasher film directed by Matt Bettinelli-Olpin and Tyler Gillett, and written by James Vanderbilt and Guy Busick.It is a sequel to Scream 4 (2011), the fifth installment in the Scream film series, and the first in the series not directed by Wes Craven, who died in 2015 and to whom the film is dedicated.