GB620888A - Furan derivatives - Google Patents

Furan derivatives

Info

Publication number
GB620888A
GB620888A GB274147A GB274147A GB620888A GB 620888 A GB620888 A GB 620888A GB 274147 A GB274147 A GB 274147A GB 274147 A GB274147 A GB 274147A GB 620888 A GB620888 A GB 620888A
Authority
GB
United Kingdom
Prior art keywords
diacetate
nitrofurfural
thiosemicarbazide
pyridine
hours
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB274147A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NORA ELSPETH TAUBMAN
Imperial Chemical Industries Ltd
Original Assignee
NORA ELSPETH TAUBMAN
Imperial Chemical Industries Ltd
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 NORA ELSPETH TAUBMAN, Imperial Chemical Industries Ltd filed Critical NORA ELSPETH TAUBMAN
Priority to GB274147A priority Critical patent/GB620888A/en
Publication of GB620888A publication Critical patent/GB620888A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D307/56—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D307/70—Nitro radicals
    • C07D307/71—Nitro radicals attached in position 5
    • C07D307/72—Nitro radicals attached in position 5 with hydrocarbon radicals, substituted by nitrogen-containing radicals, attached in position 2
    • C07D307/74—Nitro radicals attached in position 5 with hydrocarbon radicals, substituted by nitrogen-containing radicals, attached in position 2 by hydrazino or hydrazono or such substituted radicals
    • C07D307/76—Nitro radicals attached in position 5 with hydrocarbon radicals, substituted by nitrogen-containing radicals, attached in position 2 by hydrazino or hydrazono or such substituted radicals having carbonic acyl radicals or their thio or nitrogen analogues directly attached to the hydrazino or hydrazono radical, e.g. semicarbazides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pyridine Compounds (AREA)

Abstract

5-Nitrofurfural semicarbazone or thiosemicarbazone is prepared by reacting 5-nitrofurfural diacetate with semicarbazide or thiosemicarbazide which may be used as a salt, e.g. the hydrochloride. A solvent such as ethyl alcohol may be present, and pyridine, especially when salts are used. In examples: (1) a solution of semicarbazide hydrochloride in water, and then pyridine, are added to 5-nitrofurfural diacetate in alcohol at 60 DEG C. After heating at 60 DEG C. for 2 hours, and cooling, the solid is filtered off and crystallized from b -ethoxyethanol; (2) thiosemicarbazide is added to the diacetate in ethyl alcohol, and boiling continued under reflux for 24 hours, followed by cooling and filtering.
GB274147A 1947-01-29 1947-01-29 Furan derivatives Expired GB620888A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB274147A GB620888A (en) 1947-01-29 1947-01-29 Furan derivatives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB274147A GB620888A (en) 1947-01-29 1947-01-29 Furan derivatives

Publications (1)

Publication Number Publication Date
GB620888A true GB620888A (en) 1949-03-31

Family

ID=9745009

Family Applications (1)

Application Number Title Priority Date Filing Date
GB274147A Expired GB620888A (en) 1947-01-29 1947-01-29 Furan derivatives

Country Status (1)

Country Link
GB (1) GB620888A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3231570A (en) * 1961-06-15 1966-01-25 Haber Ralph George Nitrofurans

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3231570A (en) * 1961-06-15 1966-01-25 Haber Ralph George Nitrofurans

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