Nippon Kayaku Kabushiki Kaisha

Sankyo Company, Limited

Tetsuya Toya

Mikio Yanagi

Hiroyasu Sugizaki

Toshiaki Yanai

Shinji Yokoi

Yoshihisa Tsukamoto

Akio Masui

Yasuhito Kato

Yoshimi Yajima

Seiichirou Kodama

Tetsuo Watanabe

Yoshihiro Sawada

Hidetoshi Shirakura

Hiroki Hotta

The present invention can provide a process for the preparation of an 1-acyl-2-substituted hydrazine compound from a mixture containing the 1-acyl-2-substituted hydrazine and an 1-acyl-1-substituted hydrazine by selective hydrolysis or alcoholysis of the 1-acyl-yl-1-substituted hydrazine in the presence of an acid catalyst, and by separation of the resulting carboxylic acid and derivative thereof. The 1-acyl-2-alkyl hydrazine obtained has a high purity.

Process for preparation of 1-acyl-2-substituted hydrazines

A novel hydrazine derivative and a pesticidal composition containing the hydrazine derivative as the effecting ingredient. The hydrazine derivative show high pesticidal activity against harmful pests which are resistant to known pesticides such as organophosphorus pesticides, pyrethroids, etc., especially against Lepidoptera harmful pests such as Plutella xylostella, Spodoptera litura, Cnaphalocrocis medinalis, Adoxophyes orana, etc., and is effective for controlling harmful pests in paddy field, upland field, orchard, forest or places to be kept environmentally hygienic.

Hydrazine derivative and pesticidal composition comprising said

A novel hydrazine derivative and a pesticidal composition containing the hydrazine derivative as the effecting ingredient. The hydrazine derivative show high pesticidal activity against harmful pests which are resistant to known pesticides such as organophosphorus pesticides, pyrethroids, etc., especially against Lepidopters harmful pests such as Plutella xylostella, Spodoptera litura, Cnaphalocrocis medinalis, Adoxophyes orana, etc., and is effective for controlling harmful pests in paddy field, upland field, orchard, forest or places to be kept environmentally hygienic.

New hydrazine derivative and pesticidal composition comprising said

Growing community of inventors

Yono, Japan

Tetsuya Toya