| 摘要 |
Phosphorus-containing compounds of the formula (I> (R<1>)(R<2>)P(O)-CR<3>R<4>-CHR<5>R<6> (I> in which R<1> and R<2> represent alkyl, alkoxy or optionally substituted phenyl, R<3> and R<5> represent H, R, optionally substituted phenyl, ROCO-, RO-CO-RO-, halogen, CN, RO-, RO-RO-R-CO-, H2NCO-, RNHCO- or RRNCO-, where R represents alkyl, R<4> and R<6> are defined as R<1> and R<2> or represent a bivalent radical -CO-R<7>-CO in which R<7> represents oxygen, NR* or sulphur and R* represents H, optionally substituted phenyl or alkyl, are precursors for crop protection agents and flameproofing agents. They can be prepared in high yields and high purity by reacting a compound of the formula (R<1>)(R<2>)P-OR<8>, in which R<8> represents alkyl or optionally substituted phenyl, with an alkene of the formula R<3>R<4>C=CR<5>R<6> and an at least equimolar amount of a protic organic substance such as alcohols, amines, phenols, thiophenols or anilines. |
