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Benzylic type di-Grignard reagents (2)–(5) and the mono-Grignard reagent (6) have been prepared by treating the appropriate organic chloride, for (2)–(6), or bromide, for (3) and (4), with magnesium anthracene in tetrahydroguran in yields of, repectively, 92–96%, and 60 and 84%.
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Raston et al. (1984) studied this question.
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