IE42180L - Preparation of a-6-deoxytetracyclines - Google Patents

Preparation of a-6-deoxytetracyclines

Info

Publication number
IE42180L
IE42180L IE752514A IE251475A IE42180L IE 42180 L IE42180 L IE 42180L IE 752514 A IE752514 A IE 752514A IE 251475 A IE251475 A IE 251475A IE 42180 L IE42180 L IE 42180L
Authority
IE
Ireland
Prior art keywords
hydrogenation
preparation
deoxytetracyclines
ch609042a5
methylenetetracycline
Prior art date
Application number
IE752514A
Other versions
IE42180B1 (en
Original Assignee
Pfizer
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 Pfizer filed Critical Pfizer
Publication of IE42180L publication Critical patent/IE42180L/en
Publication of IE42180B1 publication Critical patent/IE42180B1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
    • B01J31/22—Organic complexes
    • B01J31/2204—Organic complexes the ligands containing oxygen or sulfur as complexing atoms
    • B01J31/2208—Oxygen, e.g. acetylacetonates
    • B01J31/2226—Anionic ligands, i.e. the overall ligand carries at least one formal negative charge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
    • B01J31/24—Phosphines, i.e. phosphorus bonded to only carbon atoms, or to both carbon and hydrogen atoms, including e.g. sp2-hybridised phosphorus compounds such as phosphabenzene, phosphole or anionic phospholide ligands
    • B01J31/2404—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F15/00—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table
    • C07F15/0006—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table compounds of the platinum group
    • C07F15/0073—Rhodium compounds
    • C07F15/008—Rhodium compounds without a metal-carbon linkage
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02—Phosphorus compounds
    • C07F9/28—Phosphorus compounds with one or more P—C bonds
    • C07F9/50—Organo-phosphines
    • C07F9/5045—Complexes or chelates of phosphines with metallic compounds or metals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/01—Feeding of unbelted ammunition
    • F41A9/24—Feeding of unbelted ammunition using a movable magazine or clip as feeding element
    • F41A9/26—Feeding of unbelted ammunition using a movable magazine or clip as feeding element using a revolving drum magazine
    • F41A9/27—Feeding of unbelted ammunition using a movable magazine or clip as feeding element using a revolving drum magazine in revolver-type guns
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/29—Feeding of belted ammunition
    • F41A9/30—Sprocket-type belt transporters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2231/00—Catalytic reactions performed with catalysts classified in B01J31/00
    • B01J2231/60—Reduction reactions, e.g. hydrogenation
    • B01J2231/64—Reductions in general of organic substrates, e.g. hydride reductions or hydrogenations
    • B01J2231/641—Hydrogenation of organic substrates, i.e. H2 or H-transfer hydrogenations, e.g. Fischer-Tropsch processes
    • B01J2231/645—Hydrogenation of organic substrates, i.e. H2 or H-transfer hydrogenations, e.g. Fischer-Tropsch processes of C=C or C-C triple bonds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
    • B01J2531/80—Complexes comprising metals of Group VIII as the central metal
    • B01J2531/82—Metals of the platinum group
    • B01J2531/822—Rhodium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

The improved process applies to the preparation of a 6-deoxytetracycline by hydrogenation of a 6-deoxy-6-demethyl-6-methylenetetracycline. The process makes possible a stereoselective hydrogenation in favour of the alpha isomer, and it is characterised in that the hydrogenation is carried out at a temperature of 20 to 100 DEG C and at a pressure of 20 to 100 atmospheres, under practically neutral or slightly acidic conditions, in the presence of a catalyst of formula Rh(OCOR)2(P[C6H5]3) in which R = hydrogen, C1 to C6 alkyl, chloromethyl, dichloromethyl, trichloromethyl, fluoromethyl, difluoromethyl, trifluoromethyl, phenyl, chlorophenyl, tolyl or anisyl. [CH609042A5]
IE2514/75A 1974-12-19 1975-11-18 Preparation of -6-deoxytetracyclines IE42180B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US53445274A 1974-12-19 1974-12-19

Publications (2)

Publication Number Publication Date
IE42180L true IE42180L (en) 1976-06-19
IE42180B1 IE42180B1 (en) 1980-06-18

Family

ID=24130096

Family Applications (1)

Application Number Title Priority Date Filing Date
IE2514/75A IE42180B1 (en) 1974-12-19 1975-11-18 Preparation of -6-deoxytetracyclines

Country Status (26)

Country Link
JP (1) JPS5186457A (en)
AR (1) AR208347A1 (en)
AT (1) AT344320B (en)
AU (1) AU476488B2 (en)
BE (1) BE836775A (en)
BG (1) BG24798A3 (en)
CH (1) CH609042A5 (en)
CS (1) CS203099B2 (en)
DD (1) DD123600A5 (en)
DE (1) DE2554564A1 (en)
DK (1) DK151224C (en)
ES (1) ES443626A1 (en)
FI (1) FI59395C (en)
FR (1) FR2295014A1 (en)
HU (1) HU173508B (en)
IE (1) IE42180B1 (en)
LU (1) LU74054A1 (en)
NL (1) NL164849B (en)
NO (1) NO146236C (en)
PH (1) PH13795A (en)
PL (1) PL105946B1 (en)
RO (1) RO72846A (en)
SE (1) SE426587B (en)
SU (1) SU799650A3 (en)
YU (1) YU39474B (en)
ZA (1) ZA757902B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE435619C (en) * 1973-02-01 1985-11-18 Pfizer PROCEDURE FOR PREPARING A 6ALFA DEOXYTETRACYCLINE
DK386784A (en) * 1983-08-17 1985-02-18 Hovione Int Ltd PROCEDURE FOR PREPARING ALFA-6-DESOXY-TETRACYCLINES

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1368431A (en) * 1970-07-22 1974-09-25 Johnson Matthey Co Ltd Rhodium complex and methods of preparing the complex
SE435619C (en) * 1973-02-01 1985-11-18 Pfizer PROCEDURE FOR PREPARING A 6ALFA DEOXYTETRACYCLINE

Also Published As

Publication number Publication date
JPS5186457A (en) 1976-07-29
DE2554564A1 (en) 1976-07-01
FI59395B (en) 1981-04-30
JPS5324944B2 (en) 1978-07-24
BG24798A3 (en) 1978-05-12
FR2295014B1 (en) 1978-10-06
AT344320B (en) 1978-07-10
YU39474B (en) 1984-12-31
ES443626A1 (en) 1977-05-01
NL164849B (en) 1980-09-15
FI59395C (en) 1981-08-10
FR2295014A1 (en) 1976-07-16
YU305075A (en) 1982-05-31
BE836775A (en) 1976-06-18
AU8766875A (en) 1976-09-23
NL7514840A (en) 1976-06-22
PH13795A (en) 1980-10-01
AR208347A1 (en) 1976-12-20
FI753459A7 (en) 1976-06-20
SE7513091L (en) 1976-06-21
CH609042A5 (en) 1979-02-15
HU173508B (en) 1979-05-28
SU799650A3 (en) 1981-01-23
LU74054A1 (en) 1976-11-11
DD123600A5 (en) 1977-01-05
DK151224B (en) 1987-11-16
DK576575A (en) 1976-06-20
AU476488B2 (en) 1976-09-23
RO72846A (en) 1982-04-12
ATA937675A (en) 1977-11-15
ZA757902B (en) 1976-12-29
NO146236C (en) 1982-08-25
DK151224C (en) 1988-05-16
IE42180B1 (en) 1980-06-18
NO146236B (en) 1982-05-18
CS203099B2 (en) 1981-02-27
NO754085L (en) 1976-06-22
PL105946B1 (en) 1979-11-30
SE426587B (en) 1983-01-31

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