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2004
Polyphenylalkyne derivatives
Q 0750
Palladium-Catalyzed Allylalkynylation of Benzynes: A Highly Efficient Route to
1-Allyl-2-alkynylbenzenes. — A new palladium-catalyzed three-compo45- 109 Substituted
nent assembling reaction of arynes with allylic chlorides and alkynylstannanes is developed. The method provides construction of two different C—C bonds in one pot,
and allows an efficient synthesis of various 1-allyl-2-alkynyl derivatives in excellent
yields. The usefulness of (IVb) for the construction of heterocyclic compounds is demonstrated. — (JEGANMOHAN, M.; CHENG*, C.-H.; Org. Lett. 6 (2004) 16,
2821-2824; Dep. Chem., Natl. Tsing Hua Univ., Taichung 300, Taiwan; Eng.) —
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