Ethanolamine → 2,2'-[(2-Nitroethene-1,1-diyl)diazanediyl]di(ethan-1-ol)

78 ml of 2-aminoethanol (1.3 moles) were added slowly over half an hour to a solution of 95 g of 1,1-bis(methylthio)-2-nitroethene (0.57 mole) in 500 ml of toluene at 80° C. After the addition, the mixture was held at 80° C. for half an hour, was cooled to room temperature and the solid formed was filtered off, washed with chloroform (2×100 ml portions) and was dried to give 107 g N,N'-bis(2-hydroxyethyl)-2-nitro-1,1-ethenediamine (97-98% yield) in yellowish crystal form. m.p. 145°-146° C.

1. additionAfter the addition
2. waitthe mixture was held at 80° C. for half an hour
3. customthe solid formed
4. filtrationwas filtered off
5. washwashed with chloroform (2×100 ml portions)
6. customwas dried

ORD record

ord-e5dd896036b144c3a0fcfee571887322

Source dataset

uspto-grants-1985_05

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US04515806