Substituted pyran-2-ones

Details Substituted pyran-2-ones Substituted pyran-2-ones

1981-07-13

1984-01-03

Fan, Jane T.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549294, C07D30930

Patent

active

044243693

ABSTRACT:
There are disclosed substituted lactones of the formula ##STR1## wherein A stands for --CH--CH.sub.2 X (X being Cl, Br or OH), --CHY--CHY--(Y being Cl or Br), or ##STR2## and R.sup.1, R.sup.2 and R.sup.3 are the same or different radicals from the group of hydrogen and C.sub.1 to C.sub.10 alkyls, at least one of the radicals R.sup.1, R.sup.2 and R.sup.3 being such an alkyl radical, and process for making the same.

REFERENCES:
patent: 3056802 (1962-10-01), Phillips et al.
patent: 4041049 (1977-08-01), Mu/ ller et al.
patent: 4235780 (1980-11-01), Kondo et al.

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