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Malononitrile is an organic compound nitrile with the formula CH 2 (CN) 2. It is a colorless or white solid, although aged samples appear yellow or even brown.
The compound 2-chlorobenzalmalononitrile (also called o-chlorobenzylidene malononitrile; chemical formula: C 10 H 5 ClN 2), a cyanocarbon, is the defining component of the lachrymatory agent commonly referred to as CS gas, a tear gas which is used as a riot control agent, and is banned for use in warfare due to the 1925 Geneva Protocol.
Carbonyl cyanide m-chlorophenyl hydrazone (CCCP; also known as [(3-chlorophenyl)hydrazono]malononitrile) is a chemical inhibitor of oxidative phosphorylation. It is a nitrile , hydrazone and protonophore .
It reacts with malononitrile to form CS. [2] References This page was last edited on 27 November 2024, at 10:12 (UTC). Text is available under the Creative Commons ...
Nucleophilic attack at the ester group, as part of acyl substitution: reaction with ammonia leads to cyanoacetamide, which can be converted by dehydration with PCl 5 or POCl 3 to malononitrile. [11] Via the acidic methylene group as a nucleophile; Ethyl cyanoacetate is a building block for the synthesis of heterocycles which are used for ...
The reactivity of chloroformates and acyl chlorides are similar. Representative reactions are: Reaction with amines to form carbamates: [2]; ROC(O)Cl + H 2 NR' → ROC(O)-N(H)R' + HCl
TCNE is prepared by brominating malononitrile in the presence of potassium bromide to give the KBr-complex, and dehalogenating with copper. [1] Oxidation of TCNE with hydrogen peroxide gives the corresponding epoxide, which has unusual properties. [2] In the presence of base, TCNE reacts with malononitrile to give salts of pentacyanopropenide: [3]
This is the list of extremely hazardous substances defined in Section 302 of the U.S. Emergency Planning and Community Right-to-Know Act (42 U.S.C. § 11002).The list can be found as an appendix to 40 CFR 355. [1]