GB698271A - Improvements in or relating to process of making 5-nitro-2-furaldehyde thiosemicarbazone - Google Patents

Improvements in or relating to process of making 5-nitro-2-furaldehyde thiosemicarbazone

Info

Publication number
GB698271A
GB698271A GB3157050A GB3157050A GB698271A GB 698271 A GB698271 A GB 698271A GB 3157050 A GB3157050 A GB 3157050A GB 3157050 A GB3157050 A GB 3157050A GB 698271 A GB698271 A GB 698271A
Authority
GB
United Kingdom
Prior art keywords
nitro
relating
making
furaldehyde thiosemicarbazone
diacetate
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
GB3157050A
Inventor
Robert Francis Raffauf
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.)
Eaton Laboratories Inc
Original Assignee
Eaton Laboratories 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
Application filed by Eaton Laboratories Inc filed Critical Eaton Laboratories Inc
Priority to GB3157050A priority Critical patent/GB698271A/en
Publication of GB698271A publication Critical patent/GB698271A/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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

5 - Nitro - 2 - furaldehyde thiosemicarbazone is obtained by the action of 5-nitro-furfural diacetate on thiosemicarbazide in acid solution with heating, at a pH below 4.0 and preferably below 3.0, thus dispensing with the step of hydrolysing the diacetate. A strong mineral acid is preferably added to produce the required pH. In the example, the reaction takes place in aqueous ethyl alcoholic solution in the presence of sulphuric acid. Specification 620,888 is referred to.
GB3157050A 1950-12-29 1950-12-29 Improvements in or relating to process of making 5-nitro-2-furaldehyde thiosemicarbazone Expired GB698271A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3157050A GB698271A (en) 1950-12-29 1950-12-29 Improvements in or relating to process of making 5-nitro-2-furaldehyde thiosemicarbazone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3157050A GB698271A (en) 1950-12-29 1950-12-29 Improvements in or relating to process of making 5-nitro-2-furaldehyde thiosemicarbazone

Publications (1)

Publication Number Publication Date
GB698271A true GB698271A (en) 1953-10-14

Family

ID=10325093

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3157050A Expired GB698271A (en) 1950-12-29 1950-12-29 Improvements in or relating to process of making 5-nitro-2-furaldehyde thiosemicarbazone

Country Status (1)

Country Link
GB (1) GB698271A (en)

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