JPS5463084A - Preparation of malonic acid derivative - Google Patents

Preparation of malonic acid derivative

Info

Publication number
JPS5463084A
JPS5463084A JP12944377A JP12944377A JPS5463084A JP S5463084 A JPS5463084 A JP S5463084A JP 12944377 A JP12944377 A JP 12944377A JP 12944377 A JP12944377 A JP 12944377A JP S5463084 A JPS5463084 A JP S5463084A
Authority
JP
Japan
Prior art keywords
compound
diaza
undecene
bicyclo
mole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP12944377A
Other languages
Japanese (ja)
Other versions
JPS5426546B2 (en
Inventor
Kazuyuki Takehana
Hideo Haitani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nihon Nohyaku Co Ltd
Original Assignee
Nihon Nohyaku Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nihon Nohyaku Co Ltd filed Critical Nihon Nohyaku Co Ltd
Priority to JP12944377A priority Critical patent/JPS5463084A/en
Publication of JPS5463084A publication Critical patent/JPS5463084A/en
Publication of JPS5426546B2 publication Critical patent/JPS5426546B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Heterocyclic Compounds Containing Sulfur Atoms (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

PURPOSE: To prepare the title compound useful as an agricultural fungicide and phamaceutical economically, by halogenating an ylidenemalonate compound, followed by eliminating hydrogen halide from the product in the presence of a small amount of 8-diaza-bicyclo(5,4,0)undecene-7.
CONSTITUTION: The compound II is prepared by (1) reacting dialkyl-4-hydooxy- 1,3-dithiolan-2-ylidene malonate of formula I (R, R' is 1-4C alkyl with a halogenating agent such as thionyl chloride, phosphorus pentachloride, etc., in an inert solvent such as toluene, xylene, etc., and (2) heating the oily product thus obtained at 95-170°C (pref. 110-150°C) in the presence of 0.01-0.5 mole (based on 1 mole of the compound I) of 8-diaza-bicyclo(5,4,0)undecene-7 thereby eliminating hydrogen halide from the oily product.
COPYRIGHT: (C)1979,JPO&Japio
JP12944377A 1977-10-28 1977-10-28 Preparation of malonic acid derivative Granted JPS5463084A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12944377A JPS5463084A (en) 1977-10-28 1977-10-28 Preparation of malonic acid derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12944377A JPS5463084A (en) 1977-10-28 1977-10-28 Preparation of malonic acid derivative

Publications (2)

Publication Number Publication Date
JPS5463084A true JPS5463084A (en) 1979-05-21
JPS5426546B2 JPS5426546B2 (en) 1979-09-04

Family

ID=15009584

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12944377A Granted JPS5463084A (en) 1977-10-28 1977-10-28 Preparation of malonic acid derivative

Country Status (1)

Country Link
JP (1) JPS5463084A (en)

Also Published As

Publication number Publication date
JPS5426546B2 (en) 1979-09-04

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