Abstract:
UNSYMMETRICAL TERTIARY ORGANOPHOSPHINES SELECTED FROM (A) COMPOUNDS OF THE FORMULA 1:
Q-P(-Q'')-Q"
WHEREIN Q IS
-(CH2)N-CH(-R5)-C(-Z)(-R4)-R3
AND WQ'' IS
-CH2-CH(-R6)-C(-Z)(-R7)-R8
AND Q'''' IS Q, Q'', ALKYL, CYCLOALKYL, ALKENYL, CYCLOALKENYL, CYANOALKYL, CARBOXYALKYL OR CARBAMIDOALKYL, AND WHERE Z IS-OH OR -NR1R2 WHERE R2 INDEPENDENTLY ARE HYDROGEN OR ALKYL (C1-C4), R2 MAY BE ACETYL, CARBAMYL OR GUANYL WHEN R1 IS HYDROGEN, OR R1 TOGETHER WITH R2 AAND THE NITROGEN ATOM OF-NR1R2 FORM A MORPHOLINYL OR PIPERIDINYL RING, PROVIDED Z IN Q AND Q'' ARE DIFFERENT, R3 THROUGH R8 INDEPENDENTLY ARE HYDROGEN OR ALKYL (C1-C4), AND N IS 0-3, AND (B) ACID SALTS OF SAID COMPOUNDS SUCH AS THE HYDROCHLORIDES. THE COMPOUNDS AND SALTS ARE DEPILATORY AGENTS.
Abstract:
DIALKYL 3,5-DI-T-ALKYLPHENYL-4- HYDROXYPHENYL PHOSPHONATES ARE PREPARED BY PHOTOCHEMICAL REACTION OF A 2,6-DI-T-ALKYL-4-HALOPHENOL WITH A TRIALKYL PHOSPHITE. THE COMPOUNDS ARE ADDITIVES TO POLYOLEFINS TO INHIBIT DETERIORATION UPON EXPOSURE TO LIGHT AND WEATHER.
Abstract:
A METHOD FOR THE DELIGNIFICATION AND BLEACHING OF LIGNOCELLULOSIC MATERIALS UNDER THE ACTION OF OXYGEN AND ALKALI IN AN ALKALINE MEDIUM AND IN THE PRESENCE OF FROM ABOUT 0.005% TO ABOUT 5.0%, BY WEIGHT, BASED ON THE WEIGHT OF SAID MATERIAL, OF A COPPER-CONTAINING MATERIAL WHICH CONVERTS, AT LEAST IN PART, TO COPPER OXIDE IN THE PRESENCE OF SAID ALKALI IN SAID ALKALINE MEDIUM.
Abstract:
WHEREIN R is alkyl of 1-8 carbon atoms or mononuclear aryl, R1, R2 and R, are hydrogen or lower alkyl, R4 is hydrogen, lower alkyl, phenyl or alkylphenyl, Q is oxygen or sulfur, m is 1 or zero and n is 1 or 2 and salts thereof are provided. They are effective depilatories and unhairing accelerators and can also be used as lubricating oil antioxidants and as flame retardants in plastics and textiles. They are prepared by reacting an appropriately substituted 3-aminopropylphosphine with a dialkyl or diaryl disulfide. Sulfides and oxides are produced by heating 1,2-azaphospholanes contained triavalent phosphorus with sulfur or oxygen or by using 3-aminopropylphosphine sulfides or oxides as starting materials.
1,2-Azaphospholanes and their 2-oxides and 2-sulfides having the formula
Abstract:
ORGANO PHOSPHONIUM SALTS OF THE FORMULA:
(A) (R1R2R3PCH2CHQ)*X* ARE PREPARED BY REACTING COMPOUNDS OF THE FORMULAE:
(I) R1R2R3PCH2CH2OY.X
OR
(II) R1R2R3PCH=CH2.X
WITH H-Q WHEREIN: X IS HALOGEN, Y IS THE RESIDUE OF AN ACYLATING AGENT, AND Q IS THE RESIDUE OF A REACTANT HAVING AN ELECTRONEGATIVE GROUP AND PROVIDING A REPLACEABLE HYDROGEN ATOM (H) WHICH IS REPLACED BY THE
R1R2R3PCH2CH-
GROUP OF COMPOUNDS I OR II FORMING THE COMPOUND A.
Abstract:
THE RATE AT WHICH SULFATE-PROCESS PULP IS BRIGHTENED BY OXYGENATED AQUEOUS MEDIUM IS ACCELARATED BY THE PRESENCE IN THE MEDIUM OF A DISSOLVED PEROXIDE WHEN THE PH OF THE MEDIUM IS IN EXCESS OF 11.