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2005
Phenol ethers
Q 0270
Conversion of 3-O-Substituted 1,2-Dibromoalkanes into 2-Bromo-1-alkenes by
Selective Elimination: Its Application to Total Synthesis of 12-Oxygenated
05- 072 the
Tremetones. — 2-Bromo-1-alkenes are efficiently synthesized in good yields by the
regioselective HBr-elimination reaction of substituted 1,2-dibromoalkanes. Regioselectivity and yields of the reaction are influenced by the electron-withdrawing effect of
O-functional groups at the C-3 position. The 2-bromo-alkene (XII) is used as precursor
for the total synthesis of several racemic 12-oxygenated tremetones. — (OHGIYA, T.;
NISHIYAMA*, S.; Chem. Lett. 33 (2004) 9, 1084-1085; Dep. Chem., Fac. Sci.
Technol., Keio Univ., Kohoku, Yokohama 223, Japan; Eng.) — H. Haber
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