Author
Arci Dirceu Wastowski
Bio: Arci Dirceu Wastowski is an academic researcher from Universidade Federal de Santa Maria. The author has contributed to research in topics: Aryl & Alkyl. The author has an hindex of 14, co-authored 54 publications receiving 499 citations.
Topics: Aryl, Alkyl, Trifluoromethyl, Enol, Fluorescence spectrometry
Papers published on a yearly basis
Papers
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TL;DR: In this article, a series of twelve 3-aryl[alkyl]-5-hydroxy-5-trichloromethyl-4, 5-dihydro-1H-pyrazole-1-carboxyamides and analogous 1-thiocarboxy-amides is reported.
49 citations
TL;DR: In this paper, the synthesis of 3-aryl[alkyl]-5-hydroxy-5-trifluoromethyl-4,5-dihydro-1H-1-pyrazolethiocarboxyamides (2a−g) from the direct cyclocondensation reaction of b-alkoxyvinyl trifluorsyl ketones with thiosemicarbazide in methanol, under mild conditions, is reported.
49 citations
TL;DR: In this article, a method to obtain a new series of 2-trichloromethyl-4-aryl-3H-1,5-benzodiazepines from the reaction of β-methoxyvinyl trichlormethyl ketones derived from acetals and o-phenylenediamine is reported.
37 citations
TL;DR: In this article, the synthesis of a series of 6-aryl(5-methyl)-4-trifluoromethyl-2(1H)-pyrimidinones from the reaction of 4-aryl-4-methoxy-1, 1,1,1-, trifluoro-3-buten-2-ones with urea in the presence of hydrochloric acid was reported.
36 citations
01 Mar 2012
TL;DR: Alem das avaliacoes entre genotipos, a utilizacao de tecnicas multivariadas possibilita restringirem-se os erros, principalmente quanto a diversidade genetica, podendo-se, assim, prever combinacoes com maior efeito heterotico.
Abstract: Alem das avaliacoes entre genotipos, a utilizacao de tecnicas multivariadas possibilita restringirem-se os erros, principalmente quanto a diversidade genetica, podendo-se, assim, prever combinacoes com maior efeito heterotico, alem da maior possibilidade de recuperacao dos genotipos superiores. Objetivou-se, com este trabalho, avaliar a divergencia genetica entre 18 cultivares de soja, por meio de seis caracteres morfoagronomicos. Foi realizada a analise de trilha, para averiguar as contribuicoes direta e indireta desses caracteres sobre o rendimento de graos. A distância generalizada de Mahalanobis fundamentou as tecnicas de agrupamentos, tanto a de Tocher, bem como a do dendrograma por ligacao simples. Observaram-se cinco grupos divergentes, sendo nove genotipos considerados similares entre si, enquanto os cultivares CEP 59, Netuno e Urano foram formadores de grupos isolados pelos dois metodos de agrupamento. Quanto a analise de trilha, observou-se que os caracteres indiretos pouco influenciaram o rendimento de graos, tendo relacao direta significativa com massa de 100 graos, tendo-se destacado os cultivares Tertulha e CEP 53, com produtividade de graos acima de 3,7 t ha-π. Palavras-chave: agrupamento, Glycine max (L.) Merr., divergencia genetica.
34 citations
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TL;DR: Ionic Liquids Presented in This Review 2020 3.1.
Abstract: 2.5. Ionic Liquids Presented in This Review 2020 3. Cyclocondensation Reactions 2020 4. Synthesis of Three-Membered Heterocycles 2022 4.1. Aziridines 2022 5. Synthesis of Five-Membered Heterocycles 2022 5.1. Pyrroles 2022 5.2. Furans 2022 5.3. Thiophenes 2023 5.4. Pyrazoles 2024 5.5. Imidazoles 2025 5.6. Isoxazoles 2027 5.7. Oxazoles, Oxazolines, and Oxazolidinones 2027 5.8. Thiazoles and Thiazolidinones 2028 6. Synthesis of Six-Membered Heterocycles 2030 6.1. Pyridines 2030 6.2. Quinolines 2031 6.3. Acridines 2033 6.4. Pyrans 2033 6.5. Flavones 2035 6.6. Pyrimidines and Pyrimidinones 2035 6.7. Quinazolines 2037 6.8. -Carbolines 2038 6.9. Dioxanes 2039 6.10. Oxazines 2039 6.11. Benzothiazines 2040 6.12. Triazines 2040 7. Synthesis of Seven-Membered Heterocycles: Diazepines 2041
631 citations
TL;DR: 1. Six-Membered Heterocycles with One Heteroatom 4155 7.6.1.
Abstract: 6.1. Oxadiazoles 4154 6.2. Diazaphospholes 4154 7. Six-Membered Heterocycles with One Heteroatom 4155 7.1. Pyridines 4155 7.2. Pyridinones 4155 7.3. Quinolines 4156 7.4. Quinolinones 4157 7.5. Isoquinolines 4157 7.6. Acridines 4158 7.7. Pyranones 4158 7.8. Flavones 4159 8. Six-Membered Heterocycles with Two Heteroatoms 4159 8.1. Pyridazinones 4159 8.2. Pyrimidines 4159 8.3. Pyrimidinones 4160 8.4. Quinazolines 4162 8.5. Quinazolinones 4162 8.6. Quinoxalines 4164 8.7. Quinoxalinediones 4165 8.8. Oxazines 4165 8.9. Oxazinones 4166 8.10. Thiazines 4166 9. Six-Membered Heterocycles with Three Heteroatoms 4166
549 citations
TL;DR: Substituted carboxylic acid hydrazides 1a-d reacted with ethenetetracarbonitril 2 in dimethyl formamide with the formation of diacylhydrazines 4a- d and 5-amino-1-substituting pyrazole-3,3,4-tricarbonitriles 5a-D, and exhibited remarkable protective effect against clonic seizures induced by i.p. injection of PTZ.
334 citations
197 citations
TL;DR: A five-membered, two-nitrogen-containing heterocycle ring is widely found as the core structure in a large variety of compounds that possess important agrochemical and pharmacological properties as mentioned in this paper.
186 citations