GB699201A - Thiosemicarbazones - Google Patents

Thiosemicarbazones

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Publication number
GB699201A
GB699201A GB10576/51A GB1057651A GB699201A GB 699201 A GB699201 A GB 699201A GB 10576/51 A GB10576/51 A GB 10576/51A GB 1057651 A GB1057651 A GB 1057651A GB 699201 A GB699201 A GB 699201A
Authority
GB
United Kingdom
Prior art keywords
thiosemicarbazide
reacted
mono
terephthalaldehyde
thiosemicarbazone
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
GB10576/51A
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of GB699201A publication Critical patent/GB699201A/en
Expired legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The invention comprises the mono- and di-thiosemicarbazones of phthalaldehydes and their preparation by reacting a phthalaldehyde with thiosemicarbazide. The monothiosemicarbazones may be further reacted with amino compounds such as aminosalicylic acid or 4-aminobenzal-thiosemicarbazide. In examples: (1) terephthalaldehyde is reacted with thiosemicarbazide in hot water to give the di-thiosemicarbazone; (2) terephthalaldehyde is reacted with thiosemicarbazide in aqueous alcohol to give the mono-thiosemicarbazone; (3) isophthalaldehyde is reacted with thiosemicarbazide in acidic aqueous alcohol to give the mono- or di-thiosemicarbazone, and the mono- and dithiosemicarbazones of orthophthalaldehydes are similarly produced; and (4) terephthalaldehyde is reacted with thiosemicarbazide in the presence of water, methanol and hydrochloric acid to yield the monothiosemicarbazone.
GB10576/51A 1948-10-05 1951-05-04 Thiosemicarbazones Expired GB699201A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE699201X 1948-10-05

Publications (1)

Publication Number Publication Date
GB699201A true GB699201A (en) 1953-11-04

Family

ID=6608369

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10576/51A Expired GB699201A (en) 1948-10-05 1951-05-04 Thiosemicarbazones

Country Status (1)

Country Link
GB (1) GB699201A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0018850A1 (en) * 1979-05-07 1980-11-12 American Cyanamid Company Substituted 9,10-anthracene-bis hydrazones and pharmaceutical compositions containing same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0018850A1 (en) * 1979-05-07 1980-11-12 American Cyanamid Company Substituted 9,10-anthracene-bis hydrazones and pharmaceutical compositions containing same

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