ES8602736A1 - Procedimiento para la obtencion de 2, 3-bihidro-2, 2-dimetil-7-benzofuranol - Google Patents

Procedimiento para la obtencion de 2, 3-bihidro-2, 2-dimetil-7-benzofuranol

Info

Publication number
ES8602736A1
ES8602736A1 ES532167A ES532167A ES8602736A1 ES 8602736 A1 ES8602736 A1 ES 8602736A1 ES 532167 A ES532167 A ES 532167A ES 532167 A ES532167 A ES 532167A ES 8602736 A1 ES8602736 A1 ES 8602736A1
Authority
ES
Spain
Prior art keywords
benzofuranol
dimethyl
preparation
bihydro
catechol
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
ES532167A
Other languages
English (en)
Other versions
ES532167A0 (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.)
Enichimica Secondaria SpA
Original Assignee
Enichimica Secondaria SpA
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
Priority claimed from IT20739/83A external-priority patent/IT1161225B/it
Priority claimed from IT20738/83A external-priority patent/IT1161224B/it
Application filed by Enichimica Secondaria SpA filed Critical Enichimica Secondaria SpA
Publication of ES8602736A1 publication Critical patent/ES8602736A1/es
Publication of ES532167A0 publication Critical patent/ES532167A0/es
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/11—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms
    • C07C37/20—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms using aldehydes or ketones
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/50—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions decreasing the number of carbon atoms
    • C07C37/52—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions decreasing the number of carbon atoms by splitting polyaromatic compounds, e.g. polyphenolalkanes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D307/78—Benzo [b] furans; Hydrogenated benzo [b] furans
    • C07D307/86—Benzo [b] furans; Hydrogenated benzo [b] furans with an oxygen atom directly attached in position 7

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)

Abstract

PROCEDIMIENTO PARA LA OBTENCION DE 2,3-BIHIDRO-2,2-DIMETIL-7-BENZOFURANOL. CONSISTE EN: 1) REACCIONAR UN COMPUESTO (I) CON ISOBUTIRALDEHIDO EN PRESENCIA DE UN CATALIZADOR SELECCIONADO ENTRE OXIDOS, HIDROXIDOS, ALCOHOLATOS Y CARBOXILATOS DE METALES DE LOS GRUPOS IA, IIB, IIA Y VIIB DEL SISTEMA PERIODICO, EN UNA RELACION MOLAR (I): ISOBUTIRALDEHIDO DE AL MENOS 0,3:1 A TEMPERATURA ENTRE 80-200C. 2) SOMETER A TRASPOSICION LA MEZCLA DE REACCION OBTENIDA EN PRESENCIA DE SO4H2, A TEMPERATURA ENTRE 180 Y 250C, OBTENIENDOSE EN FORMA DE VAPOR 2,3-BIHIDRO-2,2-DIMETIL-5-TERC. BUTIL-7-BENZOFURANOL. 3) DESALQUILAR ESTE ULTIMO A 200C EN PRESENCIA DE UN CATALIZADOR COMO ALUMINAS ACIDICAS O ACIDO FOSFORICO, OBTENIENDOSE 2,3-BIHIDRO-2,2-DIMETIL-7-BENZOFURANOL. DE APLICACION COMO INTERMEDIARIO EN LA OBTENCION DE PESTICIDAS.
ES532167A 1983-04-22 1984-04-18 Procedimiento para la obtencion de 2, 3-bihidro-2, 2-dimetil-7-benzofuranol Granted ES532167A0 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT20739/83A IT1161225B (it) 1983-04-22 1983-04-22 Procedimento per la produzione di 2,3-diidro-2,2-dimetil-7-benzofuranolo
IT20738/83A IT1161224B (it) 1983-04-22 1983-04-22 Procedimento per produrre 2,3-diidro-2,2-dimetil-7-benzofuranolo

Publications (2)

Publication Number Publication Date
ES8602736A1 true ES8602736A1 (es) 1985-12-01
ES532167A0 ES532167A0 (es) 1985-12-01

Family

ID=26327641

Family Applications (1)

Application Number Title Priority Date Filing Date
ES532167A Granted ES532167A0 (es) 1983-04-22 1984-04-18 Procedimiento para la obtencion de 2, 3-bihidro-2, 2-dimetil-7-benzofuranol

Country Status (9)

Country Link
US (1) US4562266A (es)
EP (1) EP0123357A3 (es)
AU (1) AU2705984A (es)
CA (1) CA1212682A (es)
DK (1) DK200784A (es)
ES (1) ES532167A0 (es)
IL (1) IL71591A (es)
NO (1) NO841531L (es)
SU (2) SU1355129A3 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100398945B1 (ko) * 1995-11-03 2004-07-23 삼성종합화학주식회사 카테콜과2,3-디히드로-2,2-디메틸-7-벤조푸란올을함유하는혼합물로부터이들성분을분리하는방법
CN116410162B (zh) * 2023-04-26 2025-01-28 江苏三吉利化工股份有限公司 一种副产物作溶剂的呋喃酚生产工艺

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4118400A (en) * 1977-09-22 1978-10-03 Fmc Corporation Process for preparing 2,3-dihydro-7-benzofuranols and benzodioxole intermediate therefor
FR2461708A1 (fr) * 1979-07-18 1981-02-06 Rhone Poulenc Agrochimie Preparation de dihydrodimethylhydroxy-7 benzofurane
US4540800A (en) * 1982-04-22 1985-09-10 Ube Industries, Ltd. Preparation of 2,3-dihydro-2-methyl-2,3-dialkyl-7-oxybenzofurans
IL71560A0 (en) * 1983-04-22 1984-07-31 Enichimica Secondaria Process for preparing substituted 2,3-dihydrobenzofurans and means adapted therefor

Also Published As

Publication number Publication date
SU1376945A3 (ru) 1988-02-23
CA1212682A (en) 1986-10-14
ES532167A0 (es) 1985-12-01
NO841531L (no) 1984-10-23
US4562266A (en) 1985-12-31
IL71591A (en) 1987-10-30
DK200784A (da) 1984-10-23
EP0123357A2 (en) 1984-10-31
DK200784D0 (da) 1984-04-18
EP0123357A3 (en) 1985-07-31
IL71591A0 (en) 1984-07-31
AU2705984A (en) 1984-10-25
SU1355129A3 (ru) 1987-11-23

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