CH622012A5 - Process for the preparation of isochromanes - Google Patents

Process for the preparation of isochromanes Download PDF

Info

Publication number
CH622012A5
CH622012A5 CH1113275A CH1113275A CH622012A5 CH 622012 A5 CH622012 A5 CH 622012A5 CH 1113275 A CH1113275 A CH 1113275A CH 1113275 A CH1113275 A CH 1113275A CH 622012 A5 CH622012 A5 CH 622012A5
Authority
CH
Switzerland
Prior art keywords
reaction
formula
hexane
lower alkyl
acetal
Prior art date
Application number
CH1113275A
Other languages
German (de)
English (en)
Inventor
James Milton Sanders
Loren Hall Michael
Original Assignee
Int Flavors & Fragrances Inc
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 US05/590,471 external-priority patent/US3978090A/en
Application filed by Int Flavors & Fragrances Inc filed Critical Int Flavors & Fragrances Inc
Publication of CH622012A5 publication Critical patent/CH622012A5/de

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D311/78—Ring systems having three or more relevant rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D311/76—Benzo[c]pyrans

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pyrane Compounds (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
CH1113275A 1975-06-26 1975-08-28 Process for the preparation of isochromanes CH622012A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/590,471 US3978090A (en) 1974-05-01 1975-06-26 Process for production of isochromans

Publications (1)

Publication Number Publication Date
CH622012A5 true CH622012A5 (en) 1981-03-13

Family

ID=24362401

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1113275A CH622012A5 (en) 1975-06-26 1975-08-28 Process for the preparation of isochromanes

Country Status (8)

Country Link
JP (1) JPS523066A (OSRAM)
AU (1) AU473659B2 (OSRAM)
CA (1) CA1055952A (OSRAM)
CH (1) CH622012A5 (OSRAM)
DE (1) DE2539773C2 (OSRAM)
FR (1) FR2315504A2 (OSRAM)
GB (1) GB1524076A (OSRAM)
NL (1) NL177115C (OSRAM)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3910964A (en) * 1974-05-01 1975-10-07 Int Flavors & Fragrances Inc Process for production of isochromans

Also Published As

Publication number Publication date
JPS562067B2 (OSRAM) 1981-01-17
NL177115C (nl) 1985-08-01
CA1055952A (en) 1979-06-05
DE2539773C2 (de) 1984-07-05
DE2539773A1 (de) 1977-01-13
NL177115B (nl) 1985-03-01
FR2315504B2 (OSRAM) 1980-04-25
NL7509877A (nl) 1976-12-28
JPS523066A (en) 1977-01-11
FR2315504A2 (fr) 1977-01-21
AU473659B2 (en) 1976-07-01
AU8373175A (en) 1976-07-01
GB1524076A (en) 1978-09-06

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Legal Events

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PL Patent ceased
PL Patent ceased