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2005
Polyphenylalkyne derivatives
Q 0750
Tandem Sonogashira Coupling: An Efficient Tool for the Synthesis of Diaryl— An efficient method is reported for the one-pot synthesis of different
15- 084 alkynes.
diarylalkynes starting from easily available aryl halides and 2-methyl-3-butyn-2-ol (II).
By variation of conditions [cf. A)—D)] a complementary set of conditions is
established, which allows for the efficient coupling of both electron-rich and electron-deficient substrates. The protocol is sensitive to the order in which reagents are
added. It is extended to the preparation of diarylethyne libraries. — (NOVAK, Z.;
NEMES, P.; KOTSCHY*, A.; Org. Lett. 6 (2004) 26, 4917-4920; Dep. Gen. Inorg.
Chem., Eoetvoes Lorand Univ., H-1518 Budapest, Hung.; Eng.) — Steudel
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