ES8304111A1 - Procedimiento para la preparacion de 2,3-dihidro piranos. - Google Patents

Procedimiento para la preparacion de 2,3-dihidro piranos.

Info

Publication number
ES8304111A1
ES8304111A1 ES507754A ES507754A ES8304111A1 ES 8304111 A1 ES8304111 A1 ES 8304111A1 ES 507754 A ES507754 A ES 507754A ES 507754 A ES507754 A ES 507754A ES 8304111 A1 ES8304111 A1 ES 8304111A1
Authority
ES
Spain
Prior art keywords
combating
pyran
dihydro
diethyl
dimethyl
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.)
Expired
Application number
ES507754A
Other languages
English (en)
Other versions
ES507754A0 (es
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.)
British American Tobacco Germany GmbH
Original Assignee
BAT Cigarettenfabriken GmbH
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 BAT Cigarettenfabriken GmbH filed Critical BAT Cigarettenfabriken GmbH
Publication of ES507754A0 publication Critical patent/ES507754A0/es
Publication of ES8304111A1 publication Critical patent/ES8304111A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
    • C07D309/16—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
    • C07D309/18—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member containing only hydrogen and carbon atoms in addition to the ring hetero atom
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
    • A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
    • A01N43/14—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings
    • A01N43/16—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings with oxygen as the ring hetero atom
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/004—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reaction with organometalhalides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Pyrane Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)

Abstract

PROCEDIMIENTO PARA LA OBTENCION DE 2,3-DIHIDROPIRANOS Y DE SUS ISOMEROS OPTICOS, DE FORMULA (I), EN LA QUE R , R , R Y R SON ALCOHILOS C <- . CONSISTE EN LA REACCION DE CICLACION DE UNA ~F-HIDROXICETONA DE FORMULA (II), EN LA QUE R , R , R Y R TIENEN EL MISMO SIGNIFICADO QUE EN LA FORMULA (I). LA REACCION SE LLEVA A CABO AGITANDO LA DISOLUCION ACUOSA DE ACIDO CLORHIDROCO AL 10%; SE EXTRAE VARIAS VECES CON ETER Y LOS ESTRACTOS ETEREOS REUNIDOS SE SECAN CON SULFATO SODICO Y SE ELIMINA EL DISOLVENTE. ESTOS COMPUESTOS TIENEN APLICACIONES EN AGRICULTURA PARA EL RECONOCIMIENTO PRECOZ, LOCALIZACION Y COMBATE DE ESCARABAJOS DEL TABACO.
ES507754A 1980-12-05 1981-12-04 Procedimiento para la preparacion de 2,3-dihidro piranos. Expired ES8304111A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3045909A DE3045909C2 (de) 1980-12-05 1980-12-05 2,3-Dihydropyrane, Verfahren zu deren Herstellung und deren Verwendung

Publications (2)

Publication Number Publication Date
ES507754A0 ES507754A0 (es) 1983-02-16
ES8304111A1 true ES8304111A1 (es) 1983-02-16

Family

ID=6118418

Family Applications (1)

Application Number Title Priority Date Filing Date
ES507754A Expired ES8304111A1 (es) 1980-12-05 1981-12-04 Procedimiento para la preparacion de 2,3-dihidro piranos.

Country Status (17)

Country Link
EP (1) EP0053756B1 (es)
JP (1) JPS57122077A (es)
AR (1) AR230054A1 (es)
AT (1) ATE9343T1 (es)
AU (1) AU548045B2 (es)
BR (1) BR8107900A (es)
CA (1) CA1160240A (es)
DE (2) DE3045909C2 (es)
DK (1) DK537681A (es)
ES (1) ES8304111A1 (es)
GB (1) GB2104061B (es)
GR (1) GR77301B (es)
IL (1) IL64341A (es)
PT (1) PT74086B (es)
TR (1) TR21180A (es)
YU (1) YU284181A (es)
ZA (1) ZA818137B (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3711269A1 (de) * 1987-04-03 1988-10-13 Basf Ag 3,4-dihydro-2h-pyrane
US4925985A (en) * 1988-11-02 1990-05-15 Philip Morris Incorporated Novel process for the production of 4,6-dimethyl-7-hydroxynonan-3-one
CN105272835B (zh) * 2014-06-30 2017-07-14 温州医科大学 烟草甲性信息素消旋化合物的合成方法
CN111398501B (zh) * 2020-03-23 2022-08-30 福建中烟工业有限责任公司 测定烟草甲虫性外激素诱芯中的性信息素含量的方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2858322A (en) * 1956-11-13 1958-10-28 Union Carbide Corp Process for the preparation of 3, 4-dihydro-1, 2-h-pyrans

Also Published As

Publication number Publication date
ES507754A0 (es) 1983-02-16
PT74086A (en) 1982-01-01
BR8107900A (pt) 1982-09-08
EP0053756A1 (de) 1982-06-16
EP0053756B1 (de) 1984-09-12
GB2104061B (en) 1984-08-01
DE3166083D1 (en) 1984-10-18
AR230054A1 (es) 1984-02-29
AU7767381A (en) 1982-06-10
DE3045909A1 (de) 1982-06-09
DE3045909C2 (de) 1983-07-14
ATE9343T1 (de) 1984-09-15
GR77301B (es) 1984-09-11
YU284181A (en) 1983-10-31
IL64341A0 (en) 1982-02-28
CA1160240A (en) 1984-01-10
TR21180A (tr) 1983-12-05
AU548045B2 (en) 1985-11-21
IL64341A (en) 1985-04-30
DK537681A (da) 1982-06-06
GB2104061A (en) 1983-03-02
JPS57122077A (en) 1982-07-29
ZA818137B (en) 1983-07-27
PT74086B (en) 1983-05-11

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