Tungsten Hexachloride (WCl6) as a Mild and Efficient Reagent for Deprotection of Acetals and Ketals

1998 ◽  
pp. 664-665 ◽  
Author(s):  
Habib Firouzabadi ◽  
Nasser Iranpoor* ◽  
Babak Karimi
Keyword(s):  
Tungsten Hexachloride ◽  
Efficient Reagent

ChemInform Abstract: Tungsten Hexachloride (WCl6) as a Mild and Efficient Reagent for Deprotection of Acetals and Ketals.

ChemInform ◽  
2010 ◽  
Vol 30 (16) ◽  
pp. no-no
Author(s):  
Habib Firouzabadi ◽  
Nasser Iranpoor ◽  
Babak Karimi
Keyword(s):  
Tungsten Hexachloride ◽  
Efficient Reagent

Bis(Trimethylsilyl)Chromate: An Efficient Reagent for Cleavage of Phenylhydrazones

2006 ◽  
Vol 181 (1) ◽  
pp. 227-231 ◽  
Author(s):  
Shahnaz Khaleghi ◽  
Majid M. Heravi ◽  
Fatemeh Drikvand
Keyword(s):  
Efficient Reagent

Zn(quinoline)2Cl2: an efficient reagent for synthesis of zinc azaphthalocyanines with thiomorpholine- or pyrazole substituents

2006 ◽  
Vol 10 (11) ◽  
pp. 1301-1308 ◽  
Author(s):  
Eva H. Mørkved ◽  
Nils K. Afseth ◽  
Helge Kjøsen
Keyword(s):  
Direct Synthesis ◽  
Spectroscopic Methods ◽  
Tof Sims ◽  
Elemental Analyses ◽  
Efficient Reagent ◽  
C Nmr

The Zn ( quinoline )2 Cl 2 complex is found to be a convenient reagent for the direct synthesis of amino-substituted, zinc azaphthalocyanines. Octa(4-thiomorpholinyl)- and octa(1-pyrazolyl)- substituted zinc azaphthalocyanines were synthesized from pyrazines, 5,6-bis(4-thiomorpholinyl)pyrazine-2,3-dicarbonitrile and 5,6-bis(1-pyrazolyl)pyrazine-2,3-dicarbonitrile, respectively and dry Zn ( quinoline )2 Cl 2. Two zinc azaphthalocyanines, both mixtures of four constitutional isomers, were synthesized by the same method, from 6-(2-thienyl)-5-(4-thiomorpholinyl)pyrazine-2,3-dicarbonitrile and from 6-(2-thienyl)-5-(1-pyrazolyl)pyrazine-2,3-dicarbonitrile respectively. The octa(4-thiomorpholinyl)- and octa(1-pyrazolyl)-substituted zinc azaphthalocyanines and the zinc azaphthalocyanines with mixed substituents were characterized by elemental analyses, TOF-SIMS, 1 H and 13 C NMR, and UV-vis spectroscopic methods. Q-bands for octa(4-thiomorpholinyl)- and octa(1-pyrazolyl)-substituted zinc azaphthalocyanines and the zinc azaphthalocyanines with mixed substituents are found at respectively 655 and 670 nm (ɛ: 100 000-180 000 M-1.cm-1).

m-CPBA/KOH:  An Efficient Reagent for Nucleophilic Epoxidation ofgem-Deactivated Olefins†

2005 ◽  
Vol 70 (11) ◽  
pp. 4300-4306 ◽  
Author(s):  
J. L. García Ruano ◽  
Cristina Fajardo ◽  
Alberto Fraile ◽  
M. Rosario Martín
Keyword(s):  
Efficient Reagent

Indium(III) Bromide: A Novel and Efficient Reagent for the Rapid Synthesis of 1,5-Benzodiazepines under Solvent-Free Conditions

Synthesis ◽  
2005 ◽  
Vol 2005 (03) ◽  
pp. 480-484 ◽  
Author(s):  
J. S. Yadav ◽  
B. V. Reddy ◽  
S. Praveenkumar ◽  
K. Nagaiah
Keyword(s):  
Solvent Free ◽  
Rapid Synthesis ◽  
Solvent Free Conditions ◽  
Efficient Reagent
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