Palladium catalyzed synthesis of allenes and disubstituted benzene from conjugated enynes
Conference
·
OSTI ID:250102
- Tohoku Univ., Sendai (Japan)
It has been found that Pd(0) - bidentate phosphine complex effectively catalyses the addition of CN-containing pronucleophiles 2 to conjugated enynes 1 leading with good to quantitative yields to the corresponding allenes 3. The role of nature of substituents in the enynes 1 and pronucleophiles 2, as well as type of bidentate phosphine ligands in the reaction mentioned will be discussed. In the presence of catalytic amounts of Pd(PPh{sub 3}){sub 4}, no addition of 2 to monosubstituted enynes 1 takes place instead dimerization reaction occurs afford 1,4-disubstituted aromatic compounds 4 in good yields.
- OSTI ID:
- 250102
- Report Number(s):
- CONF-9508100--
- Country of Publication:
- United States
- Language:
- English
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