Ethanolamine → HCID 54035625, compound

Participants

Reaction Conditions

Reaction Steps

A mixture comprising 5-methyl-2,2,4-trichoro-1,1,1-trifluorohexane (51.5 g), monoethanolamine (6.1 g), cuprous chloride (0.1 g) and dimethylformamide (100 ml) is stirred and heated at 96° C. (internal temperature) under a nitrogen atmosphere. When the initial green colour of the mixture is discharged further aliquots of monoethanolamine are added until a geen colour persists and GLC analysis shows that the starting material has been consumed. The reaction is complete after 5 hours. The crude product is isolated by precipitation with water, extraction with dichloromethane and removal of the solvent under reduced pressure. Distillation affords 2,4-dichloro-5-methyl-1,1,1,trifluorohex-2-ene (71%), b.p. 79°-82° C./100 mm Hg; 'Hnmr (CDCl3)τ9.2-8.8 (q, 6H); 8.2-7.8 (m, H); 5.6-5.3 (m, H); 3.9-3.4 (pair of doublets, H).

Provenance & Evidence