id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
eurjchem-154	Abdel-Rahman, Reda Mohammady; Ibrahim, Magdy Ahmed; Ali, Tarik El-Sayed	1,2,4-Triazine Chemistry Part II: Synthetic approaches for phosphorus containing 1,2,4-triazine derivatives	2010	9	.pdf	application/pdf	3946	178	60	[26].    N N NAr Ar NHNH2 P CH3 Ph Ph Ph N N NAr Ar N H N N N NAr Ar N N P CH3 PhPh Ph P CH3 O Ph Ph Ph Ar= 4-BrC6H4 reflux, THF-piperidine 10 25 + 24 -HCl -H2O 22% Cl Cl + + Scheme 8    Abdel­Rahman et al. / European Journal of Chemistry 1 (4) (2010) 388­396  391    N N NPh Ph N H N H S NH2 P O Ph O OEt OEt P O O Ph Ph CH3 CH3CH3 N N NPh Ph S N P N NH O EtO Ph N N NPh Ph S N P N NH O Ph CH3 CH3 CH3 N N NPh Ph S N P N N O EtO Ph COCF3 N N NPh Ph S N P N N O Ph CH3 CH3 CH3 COCF3 26 28 27 30 29 (CF3CO)2O (CF3CO)2O toulene toulene- H2O -EtOH - H2O -PhH66% 87% 54% 48%   Scheme 9      N N NPh Ph N H N H S NH2 P CH3 O Ph PhPh N N NPh Ph N NH P N S CH3 Ph Ph Ph N N NPh Ph N N P N S CH3 Ph Ph Ph COCF3 N N NPh Ph N NH P N S CH3 Ph Ph Ph F N N NPh Ph N N P N S CH3 Ph Ph Ph F COCF3 F OHC F OHC Cl 26 31 34 (CF3CO)2O + + 32 33 THF-DMF (CF3CO)2O 56% 77% 57% 65% 59%   Scheme 10    392  Abdel­Rahman et al. / European Journal of Chemistry 1 (4) (2010)  [24].      N N NR R N N N N N NR R N N N P(Ph)3 N N NR R N N N P(R)3 N N NR R N N N P(R)3 + 1 2 + :P(R)3 R=Ph R=OEt, OMe 1 2 1 2 1 2 + R1=R2=Ph R1&R2	cache/eurjchem-154.pdf	txt/eurjchem-154.txt