Organic compounds -- part of the class 532-570 series – Organic compounds – Chalcogen in the nitrogen containing substituent
Reexamination Certificate
2007-01-09
2007-01-09
Saeed, Kamal A. (Department: 1626)
Organic compounds -- part of the class 532-570 series
Organic compounds
Chalcogen in the nitrogen containing substituent
Reexamination Certificate
active
11203762
ABSTRACT:
A method is provided for synthesizing acylamides, useful as protectant for cultivated plants. A benzoxazine, such as 3,4-dihydro-3-methyl-2H-1,4-benzoxazine, is made in a stepwise manner by initially forming an o-nitrophenoxyketone by reacting a haloketone and a nitrophenol. The o-nitrophenoxyketone is hydrogenated to form the corresponding benzoxazine, which is thereafter acylated with an acylhalide to produce the acylamide, such as 4-dichloroacetyl-3,4-dihydro-3-methyl-2H-1,4-benzoxazine.
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Munson, legal representative Catherine
Oliver Michael Allen
Schwemlein Heinz Peter
Freistein Andrew B.
Haley Jacqueline
Saeed Kamal A.
Syngenta Crop Protection Inc.
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