Information om | Engelska ordet CHLOROMETHYL

Exempel på hur man kan använda CHLOROMETHYL i en mening

• A reaction with chloroacetyl chloride gives an anilide which is treated with chloromethyl ethyl ether and sodium hydroxide to form the herbicide.
• It undergoes Friedel-Crafts acylation with acetyl chloride and aluminium chloride to give the acyl derivative 2, with formaldehyde and hydrochloric acid to the chloromethyl derivative 3, in a Vilsmeier-Haack reaction with N-methylformanilide and phosphorus oxychloride to the formyl 4, and in a Mannich reaction to amine derivative 5.
• The Blanc chloromethylation (also called the Blanc reaction) is the chemical reaction of aromatic rings with formaldehyde and hydrogen chloride to form chloromethyl arenes.
• PUMA levels are downregulated through the activation of caspase-3 and a protease inhibited by the serpase inhibitor N-tosyl-L-phenylalanine chloromethyl ketone, in response to signals such as the cytokine TGFβ, the death effector TRAIL or chemical drugs such as anisomycin.
• It is also produced as a byproduct in the Blanc chloromethylation reaction, formed when formaldehyde (the monomer, paraformaldehyde or formalin) and concentrated hydrochloric acid are mixed, and is a known impurity in technical grade chloromethyl methyl ether.
• Typically, the alcohol to be protected is deprotonated with a non-nucleophilic base such as N,N-diisopropylethylamine (DIPEA) in dichloromethane followed by addition of the chloromethyl reagent.
• British forces also used relatively small amounts of the irritant gases chloromethyl chloroformate, chloropicrin, bromacetone and ethyl iodoacetate.
• Shell or trench mortar bombs with chloromethyl chloroformate were used against the front line and some lacrymatory "T" shells were fired on the British support lines, with no effect.

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