4774-33-8O=CNC(NC=O)NC=OHNPCDFJZADHNHD-UHFFFAOYSA-N4774-33-8DTXSID20197264Warning
H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 41 reports by companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
UsesN,N′N′′-methylidynetrisformamide (TRIFO) is a source for formamide; used for N-formylformamidine (H2N-CH=N-CHO); for the N-formylformimidoyl group (H-C=NHCHO) as a building block in heterocyclic synthesis).
General DescriptionN,N′,N′′-Methylidynetrisformamide is also referred as tris(formamido)methane.
PreparationTriethyl Orthoformate reacts with formamide under catalysis of mineral acids to give TRIFO (eq 1). The reaction of excess formamide with inorganic and organic acyl chlorides such as PCl3, POCl3, SOCl2, acetyl chloride, benzoyl chloride, and ethyl chloroformate proceeds via iminium salts to afford TRIFO. Analogously, alkylating reagents such as dialkyl sulfates, alkyl sulfonates or triethyloxonium tetrafluoroborate transform formamide to TRIFO. Alkoxymethyleneiminium salts and formamidinium salts are intermediates in these reactions. Pure salts of this type are also converted to the reagent by formamide. Reaction of Dimethyl Sulfate with formamide is the easiest way to prepare TRIFO.
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