Competitive [4 + 2] cycloadditions in equimolar mixtures of 1‐arylphosphole oxides |
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| Authors: | Gyö rgy Keglevich,Tungalag Chuluunbaatar,Beá ta Dajka,Bat‐Amgalan Namkhainyambuu,Krisztina Ludá nyi,Lá szló Tő ke |
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| Abstract: | Four different [4 + 2] cycloadditions were observed to take place in the equimolar mixtures of two different arylphosphole oxides 2a + 2b or 2b + 2c . In addition to the phosphole oxide dimers 3a‐a and 3b‐b , or 3b‐b and 3c‐c , the crossed cycloadducts 3a‐b and 3b‐a , or 3b‐c and 3c‐b were also formed in considerable portions. © 2001 John Wiley & Sons, Inc. Heteroatom Chem 12:633–635, 2001 |
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