Phosphonic acid, 2- vinyl-, diethyl ester

Phosphinimines, 50, 109 Uf-Phosphinolin-4-one, 2,3-dihydro, 1-phenyl, 53, 102 Phosphonic acid, 2-(cyclo-hexylamino)vinyl-, diethyl ester, 53, 44... [Pg.134]

DIETHYL 2-(CYCLOHEXYLAMINO)VINYLPHOSPHONATE (Phosphonic acid, [2-(cyclohexylamino)vinyl]-diethyl ester)... [Pg.44]

Diazoalkanes add readily to the double bond of esters of vinylphosphonic acid, giving the pyrazoline derivatives (100), which can lose nitrogen to give esters of cyclopropylphosphonic acids. In a similar reaction, acyl-phosphonic acid esters (101) were converted to epoxy-derivatives (102). A -Phenylsydnone adds to diethyl prop-l-ynephosphonate, giving the pyra-zole (103). The addition of cyclopentadiene to dimethyl vinyl phosphate leads to an exojendo quotient of 1.2, but with hexachlorocyclopentadiene only e/ii/o-isomer is formed. ... [Pg.117]

PSVBDEP poly(styrene-co-4-vinyl benzene phosphonic acid diethyl ester) PVAc poly(vinyl acetate)... [Pg.124]

Synthesis of isomeric chiral protected (63 )-6-amino-hexahydro-2,7-dioxopyrazolo[l,2- ]pyrazole-l-carboxylic acid 280 is shown in Scheme 36. Crude vinyl phosphonate 275, obtained by treatment of diethyl allyloxycarbonylmethyl-phosphonate with acetic anhydride and tetramethyl diaminomethane as a formaldehyde equivalent, was used in the Michael addition to chiral 4-(f-butoxycarbonylamino)pyrazolidin-3-one 272. The Michael addition is run in dichloro-methane followed by addition of f-butyl oxalyl chloride and 2 equiv of Huning s base in the same pot to provide 276 in 58% yield. The allyl ester is deprotected using palladium catalysis to give the corresponding acid 277, which is... [Pg.407]

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