Maruzen Petrochemical Company, Limited

Ryuichi Tenjimbayashi

Tomohiko Sato

Takashi Naniki

Masuo Yamazaki

Yuta Saga

Yu Kinami

Yusuke Yokoo

Ichiro Kimura

Hiroyoshi Fujino

Tomoko Watanabe

To provide a method capable of easily and efficiently removing a 2-alkoxyethanol from a mixture containing the 2-alkoxyethanol and a (2-alkoxyethyl) vinyl ether while suppressing a decrease in the yield of (2-alkoxyethyl) vinyl ether. A method for removing a 2-alkoxyethanol, including the step of adding one or more azeotropic solvents selected from the group consisting of alkanes having 7 to 8 carbon atoms and cycloalkanes having 7 to 8 carbon atoms to a mixture containing the 2-alkoxyethanol represented by the following formula (1)R&#x2014;O&#x2014;CHCHOH&#x2003;&#x2003;(1)

Me 1 hod for removing or collecting 2-alkoxyethanol, and method for producing (2-alkoxyethyl) vinyl ether

Provided is a method for producing an alkenyl phosphorus compound which can produce an alkenyl phosphorus compound efficiently even with a smaller amount of a catalyst used than that used conventionally, and further which can maintain catalytic activity to produce an alkenyl phosphorus compound in high yield even at a larger reaction scale, and which can also be applied to quantity synthesis at an industrial scale using a conventional batch reactor or continuous reactor. A method for producing an alkenyl phosphorus compound, comprising: a step of reacting a compound represented by the following formula (1):  [In formula (1), Rrepresents ORor R, Rrepresents ORor R, and Rand Rrepresent, for example, each independently a substituted or unsubstituted alkyl group.] with a compound represented by the following formula (2):  [In formula (2), Rrepresents, for example, a hydrogen atom, or a substituted or unsubstituted alkyl group.] to produce the phosphorus alkenyl compound presented by at least any of the following formulas (3) or (3):  [In formulas (3) and (3), Rand Rhave the same meaning as defined in formula (1), and Rhas the same meaning as defined in formula (2).], In which the compound represented by formula (1) is reacted with the compound represented by formula (2) using a transition metal catalyst, and a phosphorus oxo acid compound having an intramolecular P&#x2014;H bond.

Method for producing alkenyl phosphorus compound

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Ichihara, Japan

Ryuichi Tenjimbayashi