Gw. Kabalka et al., Boron trihalide-promoted addition of aryl aldehydes to styrenes. A new convenient and highly efficient synthesis of 1,3-dihalo-1,3-diarylpropanes, TETRAHEDR L, 42(34), 2001, pp. 5793-5796
Reactions of aryl aldehydes with styrenes in the presence of boron trichlor
ide in CH2Cl2 at 0 degreesC produce 1,3-dichloro-1,3-diarylpropanes in exce
llent yields. Reactions carried out using boron tribromide generate the cor
responding 1,3-dibromo-1,3-diarylpropane in good yields. (C) 2001 Elsevier
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