NL177115C - Verbeterde werkwijze ter bereiding van tricyclische isochromanen. - Google Patents

Verbeterde werkwijze ter bereiding van tricyclische isochromanen.

Info

Publication number
NL177115C
NL177115C NL7509877A NL7509877A NL177115C NL 177115 C NL177115 C NL 177115C NL 7509877 A NL7509877 A NL 7509877A NL 7509877 A NL7509877 A NL 7509877A NL 177115 C NL177115 C NL 177115C
Authority
NL
Netherlands
Prior art keywords
isochromen
improved method
preparing tricyclic
tricyclic
preparing
Prior art date
Application number
NL7509877A
Other languages
English (en)
Dutch (nl)
Other versions
NL177115B (nl
NL7509877A (nl
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 NL7509877A publication Critical patent/NL7509877A/xx
Publication of NL177115B publication Critical patent/NL177115B/xx
Application granted granted Critical
Publication of NL177115C publication Critical patent/NL177115C/xx

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)
NL7509877A 1975-06-26 1975-08-20 Verbeterde werkwijze ter bereiding van tricyclische isochromanen. NL177115C (nl)

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 (3)

Publication Number Publication Date
NL7509877A NL7509877A (nl) 1976-12-28
NL177115B NL177115B (nl) 1985-03-01
NL177115C true NL177115C (nl) 1985-08-01

Family

ID=24362401

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7509877A NL177115C (nl) 1975-06-26 1975-08-20 Verbeterde werkwijze ter bereiding van tricyclische isochromanen.

Country Status (8)

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

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 (show.php) 1981-01-17
CH622012A5 (en) 1981-03-13
CA1055952A (en) 1979-06-05
DE2539773C2 (de) 1984-07-05
DE2539773A1 (de) 1977-01-13
NL177115B (nl) 1985-03-01
FR2315504B2 (show.php) 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

Similar Documents

Publication Publication Date Title
NL181730C (nl) Werkwijze ter bereiding van bisfenolen.
NL7607376A (nl) Werkwijze ter bereiding van polyesters.
NL7610763A (nl) Werkwijze ter bereiding van zeolieten.
NL7606370A (nl) Werkwijze ter bereiding van rifamycineverbindin- gen.
NL7602200A (nl) Werkwijze ter bereiding van titaandioxydepigmen- ten.
NL7606614A (nl) Werkwijze ter bereiding van cefalosporineverbin- dingen.
NL188409C (nl) Werkwijze ter bereiding van dihydro-oxadiazinonen.
NL7515228A (nl) Werkwijze ter bereiding van polyhydrische alco- holen.
NL7601606A (nl) Werkwijze ter bereiding van vanadiumsuboxyden.
NL7606726A (nl) Verbeterde werkwijze ter bereiding van lactamen.
NL173642C (nl) Werkwijze ter bereiding van tricyclische isochromanen.
NL187392C (nl) Werkwijze ter bereiding van 4-chloor-alfa-isopropylbenzylcyanide.
NL7605207A (nl) Werkwijze ter bereiding van 2-aryl-2h-benzo- triazolen.
NL7606352A (nl) Werkwijze ter bereiding van p-alkylfenolen.
NL187855C (nl) Werkwijze ter bereiding van tereftaalzuur.
NL7713698A (nl) Werkwijze ter bereiding van nafthyridineverbin- dingen.
NL7607004A (nl) Werkwijze ter bereiding van indolochinolizinen.
NL7515230A (nl) Werkwijze ter bereiding van polyhydrische alco- holen.
NL7613222A (nl) Werkwijze ter bereiding van ethylchloorthiofor- miaat.
NL7611314A (nl) Werkwijze ter bereiding van trimethylhydro- chinon.
NL7612147A (nl) Werkwijze ter bereiding van pinacolen.
NL7605204A (nl) Werkwijze ter bereiding van 2-aryl-2h-benzo- triazolen.
NL7605203A (nl) Werkwijze ter bereiding van 2-aryl-2h-benzo- triazolen.
NL7613325A (nl) Werkwijze ter bereiding van carbamaat-carbamoyl- fluoride verbindingen.
NL7609872A (nl) Werkwijze ter bereiding van aminalen.

Legal Events

Date Code Title Description
A85 Still pending on 85-01-01
V3 Additional patents lapsed at the same time as the main patent