ChemInform Abstract: SYNTHESES OF PYRIMIDO(4,5-C)PYRIDAZINE DERIVATIVES. II. A NOVEL REACTION OF α-DIAZO-β-OXO-5-(4-CHLOROPYRIMIDINE)PROPIONATE WITH TRIPHENYL PHOSPHINE LEADING TO 1,4-DIHYDRO-4-OXOPYRIMIDO(4,5-C)PYRIDAZINE-3-CARBOXYLATE

1978 ◽  
Vol 9 (23) ◽  
Author(s):  
T. MIYAMOTO ◽  
Y. KIMURA ◽  
J. MATSUMOTO ◽  
S. MINAMI
Keyword(s):  
Triphenyl Phosphine ◽  
Pyridazine Derivatives

New Pyrrolo[1,2-b]pyridazine Derivatives by 1,3-Dipolar Cycloaddition of Mesoionic Oxazolopyridazinone

2008 ◽  
Vol 59 (11) ◽  
Author(s):  
Miron Teodor Caproiu ◽  
Florea Dumitrascu ◽  
Mino R. Caira
Keyword(s):  
Nmr Spectroscopy ◽  
Elemental Analysis ◽  
Cycloaddition Reaction ◽  
Dipolar Cycloaddition ◽  
Pyridazine Derivatives ◽  
New Compounds

New pyrrolo[1,2-b]pyridazine derivatives 8a-f were synthesized by 1,3-dipolar cycloaddition reaction between mesoionic 1,3-oxazolo[3,2-b]pyridazinium-2-oxides and diethyl or diisopropyl acetylenedicarboxylate as alkyne dipolarophiles. The structures of the new compounds were assigned by elemental analysis and NMR spectroscopy.

Organothallium compounds. VII. β-Diketonatobis(pentafluorophenyl)-thallium(III) compounds and their coordination derivatives

1971 ◽  
Vol 24 (12) ◽  
pp. 2519 ◽  
Author(s):  
GB Deacon ◽  
VN Garg
Keyword(s):  
Molecular Weight ◽  
Phosphine Oxide ◽  
Spectroscopic Data ◽  
Triphenyl Phosphine ◽  
Organothallium Compounds ◽  
Triphenyl Phosphine Oxide

The complexes (C6F5)2TlX [X = MeCOCHCOMe (acac), CF3COCHCOMe (tfac), CF8COCHCOCF3 (hfac), PhCOCHCOMe (bzac), PhCOCHCOPh (dbm), or quinolin-8- olate (oxinate or ox)], have been prepared by reactions between bromobis(pentafluorophenyl)thallium(III) and the appropriate sodium or thallous β-diketonates or sodium quinolin-8-olate, and react with equimolar amounts of 1,10-phenanthroline (phen) or 2,2?-bipyridyl (bipy) to give the complexes (C6F5)2- (phen or bipy)TlX (X = acac, tfac, or hfac), (C6F5)2(phen)TlX (X = bzac, dbm, or ox), but not (C6F5)2(bipy)TlX (X = bzac, dbm, or ox). On reaction with triphenyl- phosphine oxide or triphenylarsine oxide, the complexes (C6F5)2(Ph3PO or Ph3AsO)-TlX (X = acac, tfac, hfac, or dbm) and (C6F5)2Ph3AsOTl(ox) have been obtained. From conductance and molecular weight measurements and spectroscopic data, the complexes (C6F5)2TlX (except X = ox), (C6F5)2(Ph3PO or Ph3AsO)TlX, and (C6F5)2(phen or bipy)TlX, are considered to be monomeric with chelated β-diketonate or oxinate groups, and hence to contain four-, five-, and six-coordinate thallium respectively, whereas (C6F5)2Tl(ox) is considered to have an associated structure with bridging oxinate groups.

Synthesis and Herbicidal Activities of Novel 3-N-Substituted Amino-6-methyl-4-(3-trifluoromethylphenyl)pyridazine Derivatives

2008 ◽  
Vol 56 (15) ◽  
pp. 6567-6572 ◽  
Author(s):  
Han Xu ◽  
Xu-Hong Hu ◽  
Xiao-Mao Zou ◽  
Bin Liu ◽  
You-Quan Zhu ◽  
...  
Keyword(s):  
Pyridazine Derivatives
Sign in / Sign up

Export Citation Format

Share Document