Organic compounds -- part of the class 532-570 series – Organic compounds – Nitrogen attached directly or indirectly to the purine ring...
Patent
1978-03-27
1980-03-04
Berch, Mark L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Nitrogen attached directly or indirectly to the purine ring...
C07F 965
Patent
active
041918266
ABSTRACT:
Compounds useful as lube oil additives are prepared by reaction of phosphorus halides and piperazine derivatives.
REFERENCES:
patent: 4072633 (1978-02-01), Hermans
patent: 4086302 (1978-04-01), Morgan et al.
patent: 4142979 (1979-03-01), Hermans
Heinz et al., Chem. Abs. 80, 82137p (1972).
Berch Mark L.
Kulason Robert A.
Ries Carl G.
S.A. Texaco Belgium N.V.
Seutter Carl G.
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