METHOD FOR PREPARING PYRIDINE DERIVATIVE AND INTERMEDIATE SUBSTANCE Russian patent published in 2006 - IPC C07D401/12

Abstract RU 2272035 C2

FIELD: organic chemistry, chemical technology, herbicides.

SUBSTANCE: invention relates to a new method for preparing derivative of pyridine of the formula [d]: wherein values of R¹, R³ and R⁴ are given below. Method involves interaction of a new derivative of pyridone of the formula [a]: wherein R³ represent halogen atom, cyano-group or nitro-group; R⁴ represents hydrogen atom or halogen atom with derivative of α-diazoester of the formula [f]: -N₂CHCOR¹ [f] wherein R¹ represents (C₁-C₆)-alkoxy-group, and this interaction is carried out in the presence of acid. Proposed method is suitable and profit method for preparing derivatives of pyridine of the formula [d] possessing with specific system of substitutes and eliciting the herbicide activity.

EFFECT: improved preparing method.

8 cl, 2 tbl, 16 ex

Similar patents RU2272035C2

Title	Year	Author	Number
URACIL DERIVATIVES, HERBICIDE COMPOSITION, METHOD FOR CONTROL OF WEED AND INTERMEDIATE SUBSTANCES (VARIANTS)	2001	Tokhiama Esitomo Sanemitsu Juzuru	RU2264395C2
DERIVATIVES OF URACIL, INTERMEDIATE SUBSTANCES, HERBICIDE COMPOSITION ABD METHOD FOR SUPPRESSING WEED GROWTH	2000	Tokhiama Esitomo Sanemitsu Juzuru Gotou Tomokhiko	RU2259359C2
DIHYDROBENZOFURAN DERIVATIVES, HERBICIDE COMPOSITION AND METHOD OF WEED ABOLISHMENT	1994	Susumu Takemura Minoru Takano Satoru Kizava Kazuo Sajto	RU2125993C1
URACIL DERIVATIVES, INTERMEDIATE COMPOUNDS, HERBICIDE COMPOSITION, AND METHOD OF STRUGGLE AGAINST WEED	1990	Masajuki Enomoto[Jp] Ejki Nagano[Jp] Rio Sato[Jp] Masakharu Sakaki[Jp]	RU2029472C1
METHOD FOR PREPARING PHENOXY-SUBSTITUTED 2-PYRIDONE COMPOUNDS	2003	Furukava Takasi Matsuo Noritada Tokhiama Jositomo	RU2300526C2
DIARYL ETHERS, METHOD FOR THEIR OBTAINING AND DIARYL ETHERS-CONTAINING HERBICIDE COMPOSITIONS, INTERMEDIATE COMPOUNDS, METHOD FOR THEIR OBTAINING, METHOD TO PROTECT AGAINST WEEDS AND METHOD OF PLANT DESICCATION	1998	Pulman Dehvid A. Jing Baj-Ping Vu Shao-Jong Gupta Sandip Simokharada Khirosi Tsukamoto Masamitsu	RU2180336C2
NEW COMPOUND OF BENZIMIDAZOLONE AND ITS PHARMACEUTICAL USE	2018	Mizushima, Shingo Watanabe, Masaki Iwamoto, Kohei Urashima, Kuniko	RU2803938C2
CONDENSED TRICYCLIC IMIDAZOLE DERIVATIVES AS MODULATORS OF TNF ACTIVITY	2014	Alekszander Rikki Piter Braun Dzhulien Alister Delini Mikhael Kher Yag Paul Dzhekson Viktoriya Elizabet Yadot Sofie Kroplin Boris Mak-Koss Malkolm Sabnis Jogesh Anil Svinnen Dominik Lui Leon Van-Khautvin Natali Chzhu Chzhaonin	RU2700004C1
FUSED TRICYCLIC IMIDAZOLE DERIVATIVES AS MODULATORS OF TNF ACTIVITY	2014	Aleksander Rikki Piter Brejs Garet Nil Braun Dzhulien Alister Kalmiano Mark Daniel Chovatiya Praful Tulshi Delini Mikhael Gallimor Ellen Oliviya Kher Yag Paul Dzhekson Viktoriya Elizabet Kroplin Boris Mak-Koss Malkolm Kuinsi Dzhoanna Rejchel Sabnis Jogesh Anil Svinnen Dominik Lui Leon Chzhu Chzhaonin Khajnelt Uve Vener Folkmar	RU2679914C9
CONDENSED DERIVATIVES OF IMIDAZOLE AND PYRAZOLE AS MODULATORS OF ACTIVITY TNF	2014	Aleksander Rikki Piter Bentli Dzhonatan Mark Brejs Garet Nil Brukings Daniel Kristofer Chovatia Praful Tulshi Debov Erve Zhan Klod Dzhonstoun Krejg Dzhouns Elizabet Perl Kroplin Boris Lekomt Faben Klod Madden Dzhejms Miller Krejg Ejdrian Porter Dzhon Robert Selbi Mattyu Dankan Sho Majkl Alan Vaidya Darshan Gunvant Yule Ajan Endryu	RU2687093C1

RU 2 272 035 C2

Authors

Tokhiama Esitomo

Komori Takasi

Sanemitsu Juzuru

Dates

2006-03-20—Published

2002-07-31—Filed