| 摘要 |
1307315 Addition products of secondary phosphite esters with ketones BORG-WARNER CORP 16 April 1970 [23 May 1969] 18327/70 Heading C2P [Also in Division C3] Phosphorus compounds containing at least one tertiary hydroxyl group may be prepared by reacting a secondary phosphite of the formula (R<SP>1</SP>O) 2 P(O)H, wherein R<SP>1</SP> is an unsubstituted or halogen-substituted alkyl, aryl or alkylaryl group of 1 to 20 carbon atoms, with a mono- or di-ketone. Examples describe the preparation of such compounds from dimethyl phosphite, sodium methoxide and (8) 1,3-indandione, (9) dimedone, (10) a compound of the formula (11) methyl vinyl ketone,. (13) acetoin, (14) methyl 2-hydroxyethyl ketone, (16) 2-chlorocyclohexanone and (19) methyl 2-thienyl ketone; (15) bis-(2-chloroethyl)phosphite,cyclohexanone and sodium methoxide; (17) cyclopentanone, dimethylphosphite and sodrum, (18) p-diacetyl benzene, dimethyl phosphite and sodium and (20) cyclohexanone, bis-(#,#,#-trichloro-(-butyl)phosphite and sodium methoxide. The product of Example 12 having the formula is the highest boiling fraction purified by two fractional distillations of the reaction carried out as in Example 11. The phosphorus compounds are used in the manufacture of fire retardant polyurethanes (see Division C3). |
