BE626560A - - Google Patents

Info

Publication number
BE626560A
BE626560A BE626560DA BE626560A BE 626560 A BE626560 A BE 626560A BE 626560D A BE626560D A BE 626560DA BE 626560 A BE626560 A BE 626560A
Authority
BE
Belgium
Prior art keywords
formate
product
methylene chloride
filter
process according
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE626560A publication Critical patent/BE626560A/fr

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D311/00Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02Heterocyclic 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
    • C07D311/04Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
    • C07D311/22Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
BE626560D BE626560A (cs)

Publications (1)

Publication Number Publication Date
BE626560A true BE626560A (cs)

Family

ID=197298

Family Applications (1)

Application Number Title Priority Date Filing Date
BE626560D BE626560A (cs)

Country Status (1)

Country Link
BE (1) BE626560A (cs)

Similar Documents

Publication Publication Date Title
BE1008403A4 (fr) Procede de cristallisation d'iopamidol.
JPH0132811B2 (cs)
BE626560A (cs)
CH615902A5 (en) Process for the preparation of substituted anilines
Minton et al. CXC.—Preparation of o-, m-, and p-nitrophenoxyacetic acids and various nitrotolyloxyacetic acids and their derivatives
BE567426A (cs)
EP0352168B1 (fr) Procédé de purification de l'acide D-hydroxyphénoxypropionique
CH370093A (fr) Procédé pour la préparation de dérivés de l'acide diamino-caproïque
BE454956A (cs)
BE510069A (cs)
BE544743A (cs)
BE451550A (cs)
BE553703A (cs)
BE565804A (cs)
BE345504A (cs)
Morley et al. XVII.—Action of zinc ethide on the benzoate of propylene chlorhydrin
BE501176A (cs)
BE337700A (cs)
BE528126A (cs)
BE544240A (cs)
BE365387A (cs)
BE511103A (cs)
CH297837A (fr) Procédé pour préparer la 1-chloro-4-méthylthiaxanthone.
BE671514A (cs)
BE522657A (cs)