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2005
Polyphenylalkene derivatives
Q 0740
Tunable 1,3-Lithium Shift of Propargylic/Allenylic Lithiums Formed by ConjuAddition of 4-Aryl-3-butyn-1-enes with Organolithiums and the Subsequent
29- 105 gate
Transmetalation/Pd(0)-Catalyzed Coupling Reaction with Aryl Halides. —
A new protocol to control the 1,3-lithium shift of propargylic/allenylic species is
developed. It allows selective formation of 1,1-diarylallenes or 1,3-diarylallenes. However, starting from the 2-methylated analogue (VI) only the 1,1-diphenylallene (VII) is
available. — (MA*, S.; HE, Q.; JIN, X.; Synlett 2005, 3, 514-516; State Key Lab.
Organomet. Chem., Shanghai Inst. Org. Chem., Chin. Acad. Sci., Shanghai 200032,
Peop. Rep. China; Eng.) — Jannicke
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