MD4077B1 - Procedeul de obtinere a acizilor N, N-dimetiltioureidobenzoici - Google Patents

Procedeul de obtinere a acizilor N, N-dimetiltioureidobenzoici Download PDF

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Publication number
MD4077B1
MD4077B1 MDA20100005A MD20100005A MD4077B1 MD 4077 B1 MD4077 B1 MD 4077B1 MD A20100005 A MDA20100005 A MD A20100005A MD 20100005 A MD20100005 A MD 20100005A MD 4077 B1 MD4077 B1 MD 4077B1
Authority
MD
Moldova
Prior art keywords
obtaining
acids
dimethylthioureidobenzoic
reaction
dimethylthiouridobenzoic
Prior art date
Application number
MDA20100005A
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English (en)
Other versions
MD4077C1 (ro
Inventor
Nicanor BARBA
Galina Dragalina
Ana Popusoi
Viorel Prisacari
Original Assignee
Universitatea De Stat Din Moldova
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.)
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Publication date
Application filed by Universitatea De Stat Din Moldova filed Critical Universitatea De Stat Din Moldova
Priority to MDA20100005A priority Critical patent/MD4077C1/ro
Publication of MD4077B1 publication Critical patent/MD4077B1/ro
Publication of MD4077C1 publication Critical patent/MD4077C1/ro

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

Abstract

Inventia se refera la procedeele de obtinere a compusilor organici, in particular la un procedeu de obtinere a acizilor N,N-dimetiltioureidobenzoici, care pot fi utilizati in calitate de fungicide, nematocide, regulatori de crestere a plantelor sau in sinteza organica. Procedeul, conform inventiei, include interactiunea unui acid aminobenzoic nesubstituit sau substituit cu disulfura de tetrametiltiuram la incalzire in apa si solutie apoasa de dimetilamina in calitate de activator, la un raport molar initial al reagentilor de 1:(0,75…1):(0,5...1) si temperatura de 65…80°C, monitorizarea reactiei prin metoda cromatografiei in strat subtire, distilarea disulfurii de carbon formate, alcalinizarea ramasitei pana la un pH=9, filtrarea sulfului si a altor impuritati, acidularea filtratului pana la un pH=2...3 si izolarea produsului de reactie prin cristalizare la rece.
MDA20100005A 2010-01-18 2010-01-18 Procedeul de obţinere a acizilor N, N-dimetiltioureidobenzoici MD4077C1 (ro)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MDA20100005A MD4077C1 (ro) 2010-01-18 2010-01-18 Procedeul de obţinere a acizilor N, N-dimetiltioureidobenzoici

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MDA20100005A MD4077C1 (ro) 2010-01-18 2010-01-18 Procedeul de obţinere a acizilor N, N-dimetiltioureidobenzoici

Publications (2)

Publication Number Publication Date
MD4077B1 true MD4077B1 (ro) 2010-11-30
MD4077C1 MD4077C1 (ro) 2011-07-31

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Application Number Title Priority Date Filing Date
MDA20100005A MD4077C1 (ro) 2010-01-18 2010-01-18 Procedeul de obţinere a acizilor N, N-dimetiltioureidobenzoici

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MD (1) MD4077C1 (ro)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA973091A (en) * 1970-06-23 1975-08-19 S.I.P.C.A.M. Societa Italiana Prodotti Chimici E Per L'agricoltura - Mil Ano - S.P.A. Fungicidal composition
SU1648948A1 (ru) * 1989-03-21 1991-05-15 Кишиневский Сельскохозяйственный Институт Им.М.В.Фрунзе Способ получени 2-меркаптобензоксазолов
DE4229235A1 (de) * 1992-09-02 1994-03-03 Bitterfeld Wolfen Chemie Verfahren zur Herstellung von 6-Chlor-2-merkaptobenzoxazol
MD613G2 (ro) * 1994-02-24 1997-06-30 Государственный Университет Молд0 Procedeu de obţinere a 2-mercapto-1,3,4-oxadiazolilor
MD943G2 (ro) * 1997-07-10 1999-02-28 Государственный Университет Молд0 Procedeu de obţinere a acizilor izotiocianatobenzoici
MD956G2 (ro) * 1997-07-10 1999-03-31 Государственный Университет Молд0 Procedeu de obţinere a N-carboxiaril-N',N'-dimetiltioureelor
MD1104G2 (ro) * 1998-07-09 1999-10-31 Государственный Университет Молд0 Procedeu de obţinere a 5-N,N-dimetiltioureido-2-mercaptobenzoxazolilor
MD1106G2 (ro) * 1998-07-09 1999-10-31 Государственный Университет Молд0 Oligomeri ai 4-(N-ariltioureido)stirenului pentru stabilizarea polimerilor şi procedeu de obţinere a lor
MD1275G2 (ro) * 1999-04-16 2000-02-29 Государственный Университет Молд0 Oligo-5-vinil-2-mercaptobenzimidazol-antioxidant pentru materiale polimerice
MD2985G2 (ro) * 2004-10-04 2006-10-31 Государственный Университет Молд0 Procedeu de obţinere a izotiocianatochalconelor
MD3684G2 (ro) * 2007-05-28 2009-03-31 Государственный Университет Молд0 Procedeu de obţinere a N, N-dialchiltioureidoacetofenonelor
CN101250146A (zh) * 2008-03-25 2008-08-27 浙江大学 一种3,3'-二甲硫基二苯脲的合成方法

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MD4077C1 (ro) 2011-07-31

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FG4A Patent for invention issued
KA4A Patent for invention lapsed due to non-payment of fees (with right of restoration)
MM4A Patent for invention definitely lapsed due to non-payment of fees