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Isolation of a Kinetically Stabilized 1,3,6-Triphosphafulvene

✍ Scribed by Shigekazu Ito; Hiroki Sugiyama; Masaaki Yoshifuji


Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
105 KB
Volume
39
Category
Article
ISSN
0044-8249

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πŸ“œ SIMILAR VOLUMES


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Benzene rings severely bent and closely stacked face-to-face are revealed in the crystal structure of the [1.1]paracyclophane derivative 1, which could be isolated thanks to the kinetic stabilization provided by the steric shielding of the bridgehead sites by the substituents.

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study ( < -30"C)1111. This is best evidenced by the upfield shift of protons H' (by 23Hz) and H5 (by 32Hz) on going from ( 3 ) to ( 5 ) , which simply reflects the increased availability of the lone pair for limited delocalization but is clearly inconsistent with the development of the diamagnetic r