Synthesis of some mellein derivatives (IIIa-d) have been carried out using o-lithiation reaction. o-Lithiation of substituted N-methylbenzamides (Ia-d) and with n-BuLi followed by alkylation with propylene oxide gives 3-methyl-3,4-dihydroisocoumarins (IIa-c) and 5,6-dimethoxymellein (IIId). (IIa-c) have been converted to IIIa-c by HBr/AcOH or anhyd.AlCl3.
Bhide, B H,Akolkar, V D,Brahmbhatt, D I
p. 116 - 117
(2007/10/02)
3,4-Dihydroisocumarine, eine neue Klasse von Spurpheromonen bei Ameisen
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Bestmann, Hans Juergen,Kern, Friedrich,Schaefer, Doris,Witschel, Matthias Christian
p. 757 - 758
(2007/10/02)
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