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juven2008金虫 (小有名气)
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[交流]
求苯甲醛上碘的方法（截至2008年9月25日）
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| 只是苯甲醛，在醛基间位上碘，请各位高人指点，有参考文献的希望告诉一下 |
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sibianjing
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3楼2008-09-20 10:55:38
luobogengen
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juven2008(金币+4,VIP+0):非常感谢你的帮助
juven2008(金币+4,VIP+0):非常感谢你的帮助
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1 Synthesis, (7), 1195-1199; 2006 CASREACT Abstract Deactivated arenes were mono- or diiodinated with strong electrophilic I+ reagents, which were prepd. from NaIO4 and either I2 or KI in concd. H2SO4 (?5 wt%). In general a small excess (1.1/1.5 equiv) of the dark brown iodinating soln. was used (for nitrobenzene 2 equiv. were required). The iodinations were conducted at 25-30?within 1-2 h using either a 'direct' or an 'inverse' method of arom. iodination to give mono- or diiodinated pure products in 31-91% optimized yields. 2 Journal of Organic Chemistry (2002), 67(24), 8622-8624. Tetramethylammonium Dichloroiodate: An Efficient and Environmentally Friendly Iodination Reagent for Aromatic Compounds under Mild and Solvent-Free Conditions. Hajipour, Abdol R.; Arbabian, Marty; Ruoho, Arnold E. Department of Pharmacology, Medical School, University of Wisconsin, Madison, WI, USA. Journal of Organic Chemistry (2002), 67(24), 8622-8624. Publisher: American Chemical Society, CODEN: JOCEAH ISSN: 0022-3263. Journal written in English. CAN 138:89526 AN 2002:841301 CAPLUS Abstract Tetramethylammonium dichloroiodate as a mild and efficient iodination reagent was prepd. Iodination of different arom. compds. with this reagent takes place fast and with high yields under solvent-free conditions. 92%的收率 |
2楼2008-09-20 10:51:49