✦ LIBER ✦

Ethyl 3- and 5-Triflyloxy-1H-pyrazole-4-carboxylates in the Synthesis of Condensed Pyrazoles by Pd-Catalysed Cross-Coupling Reactions

✍ Scribed by Eglė Arbačiauskienė; Gytė Vilkauskaitė; Algirdas Šačkus; Wolfgang Holzer

Publisher: John Wiley and Sons
Year: 2011
Tongue: English
Weight: 626 KB
Volume: 2011
Category: Article
ISSN: 1434-193X
DOI: 10.1002/ejoc.201001560

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

ChemInform Abstract: Ethyl 3- and 5-Trif

ChemInform Abstract: Ethyl 3- and 5-Triflyloxy-1H-pyrazole-4-carboxylates in the Synthesis of Condensed Pyrazoles by Pd-Catalyzed Cross-Coupling Reactions.

✍ Egle Arbaciauskiene; Gyte Vilkauskaite; Algirdas Sackus; Wolfgang Holzer 📂 Article 📅 2011 🏛 John Wiley and Sons ⚖ 38 KB 👁 1 views

Regioselective Synthesis of Ethyl Pyrazo

Regioselective Synthesis of Ethyl Pyrazolecarboxylates from Ethyl 3-[(Dimethylamino)methylidene]pyruvate and Diethyl 3-[(Dimethylamino)methylidene]-2-oxosuccinate. Isolation of Ethyl 4,5-Dihydro-1-heteroaryl-5-hydroxy-1H-pyrazole-5-carboxylates as Stable Intermediates in the Pyrazole Ring Formation.

✍ Andrej Hanzlowsky; Blanka Jelencic; Simon Recnik; Jurij Svete; Amalija Golobic; 📂 Article 📅 2003 🏛 John Wiley and Sons ⚖ 157 KB 👁 1 views

## Abstract For Abstract see ChemInform Abstract in Full Text.

Regioselective synthesis of ethyl pyrazo

Regioselective synthesis of ethyl pyrazolecarboxylates from ethyl 3-[(dimethylamino)methylidene]pyruvate and diethyl 3-[(dimethylamino)methylidene]-2-oxosuccinate. Isolation of ethyl 4,5-dihydro-1-heteroaryl-5-hydroxy-1H-pyrazole-5-carboxylates as stable intermediates in the pyrazole ring formation

✍ Andrej Hanzlowsky; Blanka Jelenčič; Simon Rečnik; Jurij Svete; Amalija Golobič; 📂 Article 📅 2003 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 147 KB

## Abstract Reactions of ethyl 3‐[(__E__)‐(dimethylamino)methylidene]pyruvate (**3**) and 3‐[(dimethylamino)methyl‐idene]‐2‐oxosuccinate (**4**) with hydrazine monohydrochloride (**5a**) and (hetero)arylhydrazines (**5b‐i**) afforded, regioselectively, 1‐substituted ethyl 1__H__‐pyrazole‐5‐carboxyl

Reaction of ketene dithioacetals with py

Reaction of ketene dithioacetals with pyrazolylcarbohydrazide: Synthesis and biological activities of ethyl 5-amino-1–(5′-methyl-1′-t-butyl-4′-pyrazolyl)carbonyl-3-methylthio-1 H-pyrazole-4-carboxylate

✍ Ming Li; Li-Rong Wen; Wei-Jun Fu; Gui-Long Zhao; Fang-Zhong Hu; Hua-Zheng Yang 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 270 KB

Studies on the Reactions of Cyclic Oxaly

Studies on the Reactions of Cyclic Oxalyl Compounds with Hydrazines or Hydrazones: Synthesis and Reactions of 4-Benzoyl-1-(3-nitrophenyl)-5-phenyl-1H-pyrazole-3-carboxylic Acid.

✍ Ahmet Sener; Rahmi Kasimogullari; M. Kasim Sener; Ishak Bildirici; Yunus Akcamur 📂 Article 📅 2003 🏛 John Wiley and Sons ⚖ 226 KB 👁 1 views

Studies on the reactions of cyclic oxaly

Studies on the reactions of cyclic oxalyl compounds with hydrazines or hydrazones : Synthesis and reactions of 4-benzoyl-1-(3-nitrophenyl)-5-phenyl-1H-pyrazole-3-carboxylic acid

✍ Ahmet Şener; M. Kasim Şener; Ishak Bildmci; Rahmi Kasimogullari; Yunus Akçamur 📂 Article 📅 2002 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 71 KB 👁 1 views

## Abstract The 1__H__‐pyrazole‐3‐carboxylic acid **2**, obtained from the furan‐2,3‐dione **1** and __N__‐Benzylidene‐__N__'‐(3‐nitrophenyl) hydrazine, was converted via reactions of its acid chloride **3** with various alcohols or N‐nucleo‐philes into the corresponding ester or amide derivatives