Patents by Inventor Yoshiyuki YUMOTO

Yoshiyuki YUMOTO has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • 7-methyl-3-methylene-7-octenyl halide, method for producing the same, and method for producing 7-methyl-3-methylene-7-octenyl propionate
    Patent number: 9481619
    Abstract: Provided is a simple, selective and efficient method for producing 7-methyl-3-methylene-7-octenyl propionate and the like. More specifically, provided is, for example, a method for producing 7-methyl-3-methylene-7-octenyl propionate, comprising the steps of: subjecting a nucleophile represented by Formula (1) and an electrophile represented by Formula (2) to a coupling reaction to obtain a 7-methyl-3-methylene-7-octenyl halide represented by Formula (3), and subjecting the 7-methyl-3-methylene-7-octenyl halide (3) to propionyloxylation to obtain the 7-methyl-3-methylene-7-octenyl propionate represented by Formula (4).
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: November 1, 2016
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Takeshi Kinsho, Naoki Ishibashi, Yoshiyuki Yumoto
  • 7-METHYL-3-METHYLENE-7-OCTENYL HALIDE, METHOD FOR PRODUCING THE SAME, AND METHOD FOR PRODUCING 7-METHYL-3-METHYLENE-7-OCTENYL PROPIONATE
    Publication number: 20160185690
    Abstract: Provided is a simple, selective and efficient method for producing 7-methyl-3-methylene-7-octenyl propionate and the like. More specifically, provided is, for example, a method for producing 7-methyl-3-methylene-7-octenyl propionate, comprising the steps of: subjecting a nucleophile represented by Formula (1) and an electrophile represented by Formula (2) to a coupling reaction to obtain a 7-methyl-3-methylene-7-octenyl halide represented by Formula (3), and subjecting the 7-methyl-3-methylene-7-octenyl halide (3) to propionyloxylation to obtain the 7-methyl-3-methylene-7-octenyl propionate represented by Formula (4).
    Type: Application
    Filed: December 18, 2015
    Publication date: June 30, 2016
    Inventors: Takeshi Kinsho, Naoki Ishibashi, Yoshiyuki Yumoto
  • Method for producing (E)-2-isopropyl-5-methyl-2,4-hexadienyl acetate
    Patent number: 9126923
    Abstract: Provided is a simple and efficient method for producing (E)-2-isopropyl-5-methyl-2,4-hexadienyl acetate. More specifically, provided is a method for producing (E)-2-isopropyl-5-methyl-2,4-hexadienyl acetate including the steps of: isomerizing 2-isopropenyl-5-methyl-4-hexenoic acid (1) into (E)-2-isopropyl-5-methyl-2,4-hexadienoic acid (2), reducing thus formed (E)-2-isopropyl-5-methyl-2,4-hexadienoic acid (2) into (E)-2-isopropyl-5-methyl-2,4-hexadienol (3), and acetylating thus formed (E)-2-isopropyl-5-methyl-2,4-hexadienol (3) into (E)-2-isopropyl-5-methyl-2,4-hexadienyl acetate (4), wherein Ac represents an acetyl group.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: September 8, 2015
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Takeshi Kinsho, Naoki Ishibashi, Yoshiyuki Yumoto
  • METHOD FOR PRODUCING (E)-2-ISOPROPYL-5-METHYL-2,4-HEXADIENYL ACETATE
    Publication number: 20150119598
    Abstract: Provided is a simple and efficient method for producing (E)-2-isopropyl-5-methyl-2,4-hexadienyl acetate. More specifically, provided is a method for producing (E)-2-isopropyl-5-methyl-2,4-hexadienyl acetate including the steps of: isomerizing 2-isopropenyl-5-methyl-4-hexenoic acid (1) into (E)-2-isopropyl-5-methyl-2,4-hexadienoic acid (2), reducing thus formed (E)-2-isopropyl-5-methyl-2,4-hexadienoic acid (2) into (E)-2-isopropyl-5-methyl-2,4-hexadienol (3), and acetylating thus formed (E)-2-isopropyl-5-methyl-2,4-hexadienol (3) into (E)-2-isopropyl-5-methyl-2,4-hexadienyl acetate (4), wherein Ac represents an acetyl group.
    Type: Application
    Filed: October 29, 2014
    Publication date: April 30, 2015
    Inventors: Takeshi KINSHO, Naoki ISHIBASHI, Yoshiyuki YUMOTO