Process for producing lactam

Organic compounds -- part of the class 532-570 series – Organic compounds – Unsubstituted hydrocarbyl chain between the ring and the -c-...

Reexamination Certificate

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C540S536000

Reexamination Certificate

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07045622

ABSTRACT:
It is an object of the present invention to provide a method of continuously producing a lactam in high-temperature high-pressure water, and the present invention relates to a method for producing a lactam characterized by selectively synthesizing the lactam without bringing about hydrolysis by introducing an oxime into flowing high-temperature high-pressure water, wherein the lactam is continuously synthesized at a high rate from the oxime in water at a high temperature of at least 250° C. and a high pressure of at least 12 MPa.

REFERENCES:
patent: 10-287644 (1998-10-01), None
Yutaka Ikushima, et al., Journal of the American Chemical Society, vol. 122, No. 9, pp. 1908-1918 2000.
Osamu Sato, et al., The Journal of Organic Chemistry, vol. 63, No. 24, pp. 9100-9102.

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