Reactions of (E)-1,2-di(3-guaiazulenyl)ethylene and 2-(3-guaiazulenyl)-1,1- bis(4-methoxyphenyl)ethylene with tetracyanoethylene (TCNE) in benzene: Comparative studies on the products and their spectroscopic properties

Tetrahedron

Volumn 62, Issue 15, 2006, Pages 3732-3738

  Takekuma, Shin Ichi ^a   Hirosawa, Masanori ^a   Morishita, Seiko ^a   Sasaki, Masato ^a   Minematsu, Toshie ^a   Takekuma, Hideko ^a  

^a KINKI UNIVERSITY   (Japan)

Author keywords

(E) 1,2 Di(3 guaiazulenyl)ethylene; 2 (3 Guaiazulenyl) 1,1 bis(4 methoxyphenyl)ethylene; Annulation; Charge transfer complex; TCNE

Indexed keywords

AZULENE DERIVATIVE; BENZENE DERIVATIVE; ETHYLENE DERIVATIVE; TETRACYANOETHYLENE;

ARTICLE; CHEMICAL REACTION; CHEMICAL STRUCTURE; CYCLOADDITION; ISOLATION PROCEDURE; PRIORITY JOURNAL; SPECTROSCOPY; TEMPERATURE;

EID: 33644994994     PISSN: 00404020     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tet.2006.01.078     Document Type: Article

References (24)

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23. -1, scan width=(1.26+0.30 tanθ)°, scan mode=ω-2θ, scan rate=8.0°/min, measured reflections=10,210, observed reflections=9491, no. of parameters=469, R1=0.186, wR2=0.514 and Goodness of Fit Indicator =3.49.
24. 11 respectively, in benzene at 25°C under oxygen, the CT complexes a (see Scheme 2) have not yet been isolated because of very difficulty in obtaining the reactive CT complexes a produced by the reactions of 1 and 2 with a 2 M amount of TCNE in toluene at -20°C under argon.