ZA828462B - Purification of tetrahydrodibenzo (b,d) pyrans from crude syntetic mixtures - Google Patents

Purification of tetrahydrodibenzo (b,d) pyrans from crude syntetic mixtures

Info

Publication number
ZA828462B
ZA828462B ZA828462A ZA828462A ZA828462B ZA 828462 B ZA828462 B ZA 828462B ZA 828462 A ZA828462 A ZA 828462A ZA 828462 A ZA828462 A ZA 828462A ZA 828462 B ZA828462 B ZA 828462B
Authority
ZA
South Africa
Prior art keywords
syntetic
tetrahydrodibenzo
pyrans
crude
purification
Prior art date
Application number
ZA828462A
Other languages
English (en)
Inventor
Robert E Olsen
Stephen J Backlund
Original Assignee
Aerojet General Co
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 Aerojet General Co filed Critical Aerojet General Co
Publication of ZA828462B publication Critical patent/ZA828462B/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
    • C07D311/80—Dibenzopyrans; Hydrogenated dibenzopyrans

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pyrane Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
ZA828462A 1981-12-21 1982-11-17 Purification of tetrahydrodibenzo (b,d) pyrans from crude syntetic mixtures ZA828462B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/332,644 US4381399A (en) 1981-12-21 1981-12-21 Purification of tetrahydrodibenzo[b,d]pyrans from crude synthetic mixtures

Publications (1)

Publication Number Publication Date
ZA828462B true ZA828462B (en) 1983-09-28

Family

ID=23299180

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA828462A ZA828462B (en) 1981-12-21 1982-11-17 Purification of tetrahydrodibenzo (b,d) pyrans from crude syntetic mixtures

Country Status (11)

Country Link
US (1) US4381399A (da)
EP (1) EP0098291A4 (da)
JP (1) JPS58502149A (da)
AR (1) AR230443A1 (da)
AU (1) AU1153983A (da)
DK (1) DK379683D0 (da)
ES (1) ES518361A0 (da)
IE (1) IE54285B1 (da)
IT (1) IT1200512B (da)
WO (1) WO1983002275A1 (da)
ZA (1) ZA828462B (da)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2925753B2 (ja) * 1990-02-23 1999-07-28 ダイセル化学工業株式会社 光学異性体の分離方法
US5342971A (en) * 1992-12-29 1994-08-30 The Australian National University Process for the preparation of dibenzo[b,d]pyrans
MXPA05004966A (es) * 2002-11-12 2005-08-02 Mallinckrodt Inc Derivados cristalinos de canabinoide y procesos de purificacion de canabinoide.
AU2004230871A1 (en) * 2003-04-10 2004-10-28 Mallinckrodt Inc. Olivetol-cyclodextrin complexes and regio-selective process for preparing delta 9-tetrahydrocannabinol
US7923558B2 (en) * 2004-07-19 2011-04-12 Cilag Ltd. Method for obtaining pure tetrahydrocannabinol
US20060051824A1 (en) * 2004-09-03 2006-03-09 Haoyun An Tetrahydrocannabinoid antigens and method of use
US7323576B2 (en) * 2004-10-01 2008-01-29 Alphora Research Inc. Synthetic route to dronabinol
TWI369203B (en) 2004-11-22 2012-08-01 Euro Celtique Sa Methods for purifying trans-(-)-△9-tetrahydrocannabinol and trans-(+)-△9-tetrahydrocannabinol
TWI366460B (en) 2005-06-16 2012-06-21 Euro Celtique Sa Cannabinoid active pharmaceutical ingredient for improved dosage forms
CA2623723A1 (en) * 2005-09-29 2007-04-12 Amr Technology, Inc. Process for production of delta-9-tetrahydrocannabinol
US11993563B2 (en) 2018-10-31 2024-05-28 Enantia S.L. Solid compositions of cocrystals of cannabinoids

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3920705A (en) * 1967-05-19 1975-11-18 Theodore Petrzilka 6a,10a-trans-6a,10,10a-tetrahydrodibenzo(b,d)-pyrans
CH481911A (de) * 1967-05-19 1969-11-30 Theodor Dr Petrzilka Verfahren zur Herstellung von tricyclischen Verbindungen
US3833616A (en) * 1968-09-16 1974-09-03 T Petrzilka 6a,10a-trans-6a,7,8,10a-tetrahydrodibenzo(b,d)-pyrans
US3668224A (en) * 1970-07-02 1972-06-06 Theodor Petrzilka PROCESS OF PRODUCING 6a, 10a-TRANS-6a,7,8,10a-TETRAHYDRODIBENZO (b,d)-PYRANS
US4025516A (en) * 1975-06-23 1977-05-24 The John C. Sheehan Institute For Research, Inc. Process for the preparation of (-)-6a,10a-trans-6a,7,8,10a-tetrahydrodibenzo[b,d]-pyrans
US4116979A (en) * 1975-06-23 1978-09-26 Sheehan Institute For Research, Inc. Process for the preparation of (-)-6a,10a-trans-6a,7,8,10a-tetrahydrodibenzo[b,d]-pyrans
US4036857A (en) * 1976-02-02 1977-07-19 Sharps Associates Benzopyrans having an unsaturated side chain

Also Published As

Publication number Publication date
US4381399A (en) 1983-04-26
AR230443A1 (es) 1984-04-30
EP0098291A4 (en) 1984-05-29
DK379683A (da) 1983-08-19
IT8249707A0 (it) 1982-12-20
ES8504165A1 (es) 1984-08-01
IT1200512B (it) 1989-01-18
JPS58502149A (ja) 1983-12-15
DK379683D0 (da) 1983-08-19
WO1983002275A1 (en) 1983-07-07
IE823008L (en) 1983-06-21
IE54285B1 (en) 1989-08-16
EP0098291A1 (en) 1984-01-18
AU1153983A (en) 1983-07-15
ES518361A0 (es) 1984-08-01

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