Palladium(II) chloride catalyzes the cross-coupling reaction of 2,5-bis-(butyltelluro)-furan and 1-alkynes

Tetrahedron Letters

Volumn 44, Issue 7, 2003, Pages 1387-1390

  Zeni, Gilson ^a   Nogueira, Cristina W ^a   Silva, Dagoberto O ^a   Menezes, Paulo H ^b   Braga, Antonio L ^a   Stefani, Hélio A ^c   Rocha, João B T ^a  

^a FEDERAL UNIVERSITY OF SANTA MARIA   (Brazil)

^b FEDERAL UNIVERSITY OF PERNAMBUCO   (Brazil)

^c UNIVERSITY OF SÃO PAULO   (Brazil)

Author keywords

Cross coupling; Furan; Palladium; Tellurium

Indexed keywords

2,5 BIS(BUTYLTELLURO)FURAN; FURAN DERIVATIVE; PALLADIUM COMPLEX; UNCLASSIFIED DRUG;

ARTICLE; CATALYSIS; CHEMICAL STRUCTURE; DRUG ACTIVITY; DRUG SYNTHESIS; METHODOLOGY;

EID: 84984582737     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4039(02)02879-4     Document Type: Article

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21. 3) δ 126.98, 124.12, 33.66, 24.55, 13.21, 10.22. MS m/z (%) 433 (50), 377 (15), 250 (100), 193 (47), 66 (32), 57 (84).
22. 6) δ 136.96; 116.49; 92.30; 75.54; 51.38. MS m/z (%) 176 (34), 159 (12), 141 (70), 121 (100), 66 (76). IR (KBr, film) ν 3500-3100 (O-H), 3097, 1921, 2859, 2213, 1506, 1429, 1206, 864.
23. 3) δ 141.88, 126.14, 120.45, 117.38, 93.19, 75.52, 52.31, 33.83, 24.72, 14.08, 10.18. MS m/z (%) 305 (12), 252 (30), 121 (42), 105 (100), 66 (98), 57 (60). IR (KBr, film) ν 3500-3100 (O-H), 3043, 2960, 2835, 1237, 1542, 1437, 1248, 861.
24. 6) δ 144.72, 142.45, 118.60, 118.44, 98.99, 87.51, 81.03, 68.48, 52.32, 35.65, 27.58, 11.00. MS m/z (%) 216 (13), 198 (33), 180 (100), 166 (31), 142 (17), 127 (17), 112 (11), 66 (61). IR (KBr, film) ν 3500-3100 (O-H), 3058, 2963, 2837, 1221, 1532, 1447, 1239, 858.