A new synthetic approach for nonlinear optical chromophores possessing enhanced thermal stability

Tetrahedron Letters

Volumn 37, Issue 39, 1996, Pages 7055-7058

  Shu, Ching Fong ^a   Tsai, Wen Jen ^a   Jen, Alex K Y ^b  

^a NATIONAL CHIAO TUNG UNIVERSITY   (Taiwan)

^b Optical Materials Division   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ALKENE DERIVATIVE;

ARTICLE; CHROMATOPHORE; DRUG SYNTHESIS; NUCLEAR MAGNETIC RESONANCE; REACTION ANALYSIS; SPECTROPHOTOMETRY; THERMOSTABILITY;

EID: 0030599255     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/0040-4039(96)01550-X     Document Type: Article

References (21)

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13. 3 as solvent. Chemical shifts are in ppm, coupling constants are in Hz. 1a: δ 1.07 (s, 6H), 1.15 (t, 6H, J = 6.9), 2.26 (s, 2H), 2.43 (s, 2H), 3.39 (q, 4H, J = 6.9), 6.00 (s, 1H), 6.64 (d, 2H, J = 8.7), 6.70 (d, 1H, J = 16.2), 6.93 (d, 1H, J = 16.2), 7.37 (d, 2H, J = 8.7). 2a: δ 1.06 (s, 6H), 1.21 (t, 6H, J = 6.9), 2.45 (s, 2H), 2.56 (s, 2H), 3.42 (q, 4H, J = 6.9), 6.65 (d, 2H, J = 8.7), 6.74 (s, 1H), 6.78 (d,1H, J = 16.2), 7.02 (d, 1H, J = 16.2), 7.39 (d, 2H, J = 8.7). 3a: δ 1.06 (s, 6H), 1.21 (t, 6H, J = 6.9), 1.31 (m, 6H), 2.42 (s, 2H), 3.11 (s, 2H), 3.42 (q, 4H, J = 6.9), 4.55 (m, 4H), 6.65 (d, 2H, J = 8.7), 6.97 (d, 1H, J = 16.2), 7.10 (d, 1H, J = 16.2), 7.42 (d, 2H, J =8.7), 8.41 (s, 1H). 6a: δ 1.06 (s,6H), 1.18 (t,6H, J = 6.9), 230 (s, 2H), 2.51 (s,2H), 338 (q, 4H, J = 6.9), 6.27 (s, 1H), 6.60 (s, 1H), 6.64 (d, 2H, J = 9.0), 6.66 (d, 1H, J = 15.9), 6.71 (d, 1H, J= 15.9), 7.07 (d, 1H, J = 4.2), 7.34 (d, 2H, J = 9.0), 7.66 (d, 1H, J =4.2), 7.67 (s, 1H). 7a: δ 1.10 (s, 6H), 1.19 (t, 6H, J = 6.9), 1.33 (m, 6H), 2.33 (s, 2H), 2.64 (s, 2H), 3.39 (q, 4H, J = 6.9), 4.61 (m, 4H), 6.32 (s, 1H), 6.63 (s, 1H), 6.64 (d, 2H, J = 8.7), 6.69 (d, 1H, J = 16.2), 6.75 (d, 1H, J = 16.2), 7.20 (d, 1H, J = 4.5), 7.34 (d, 2H, J = 8.7), 7.83 (d, 1H, J = 4.5), 8.58 (s, 1H). 8a: δ 1.08(s, 6H), 1.19 (t, 6H, J = 6.9), 2.35 (s, 2H), 2.54 (s, 2H), 3.40 (q, 4H, J = 6.9), 6.32 (s, 1H), 6.62 (d, 2H, J = 8.7), 6.63 (s, 1H), 6.73 (s, 2H), 7.11 (d, 1H, J = 4.8), 7.34 (d, 2H, J - 8.7), 7.94 (d, 1H, J = 4.8).
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