SYNTHETIC APPROACHES TO 3,3′-BIINDOLYL AND 3,3′-BIINDAZOLYL DERIVATIVES
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作者:
Nakhai, Azadeh
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Karolinska Inst, Dept Biosci & Nutr, Unit Organ Chem, SE-14157 Huddinge, SwedenKarolinska Inst, Dept Biosci & Nutr, Unit Organ Chem, SE-14157 Huddinge, Sweden
Nakhai, Azadeh
[1
]
Bergman, Jan
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Karolinska Inst, Dept Biosci & Nutr, Unit Organ Chem, SE-14157 Huddinge, SwedenKarolinska Inst, Dept Biosci & Nutr, Unit Organ Chem, SE-14157 Huddinge, Sweden
Bergman, Jan
[1
]
机构:
[1] Karolinska Inst, Dept Biosci & Nutr, Unit Organ Chem, SE-14157 Huddinge, Sweden
In this paper new syntheses of 3,3'-biindolyl and 3,3'-biindazolyl derivatives are described. Formation of 3,3'-biindolyl derivatives by oxidative coupling of N-acetylindole with TeCl4 gave a good yield, while attempt to use the same reaction conditions for synthesis of 3,3'-biindazolyl derivatives failed. However, conversion of 3-haloindazole derivatives to its trimethylstannane derivative, followed by palladium-catalyzed Stille cross-coupling reaction, resulted in formation of 3,3'-biindazolyl derivatives.