A Methyl Group Effect on the Conformation of Methylated [3.2]Metacyclophan-10-enes

Grützmacher H-F, Neumann E (1993)
Chemische Berichte 126(6): 1495-1497.

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The syntheses of 7,13-dimethyl[3.2]metacyclophan-10-ene (5) and 7,10,11,13-tetramethyl[3.2]metacyclophan-10-ene (6) starting from 1,3-bis(4-methylphenyl)propane (1) are reported. 5 exists in the anti conformation typical of [3.2]metacyclophan-enes while 6 prefers the syn conformation because of steric repulsion between the methyl groups at the etheno bridge and at the aromatic rings.
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Grützmacher H-F, Neumann E. A Methyl Group Effect on the Conformation of Methylated [3.2]Metacyclophan-10-enes. Chemische Berichte. 1993;126(6):1495-1497.
Grützmacher, H. - F., & Neumann, E. (1993). A Methyl Group Effect on the Conformation of Methylated [3.2]Metacyclophan-10-enes. Chemische Berichte, 126(6), 1495-1497.
Grützmacher, H. - F., and Neumann, E. (1993). A Methyl Group Effect on the Conformation of Methylated [3.2]Metacyclophan-10-enes. Chemische Berichte 126, 1495-1497.
Grützmacher, H.-F., & Neumann, E., 1993. A Methyl Group Effect on the Conformation of Methylated [3.2]Metacyclophan-10-enes. Chemische Berichte, 126(6), p 1495-1497.
H.-F. Grützmacher and E. Neumann, “A Methyl Group Effect on the Conformation of Methylated [3.2]Metacyclophan-10-enes”, Chemische Berichte, vol. 126, 1993, pp. 1495-1497.
Grützmacher, H.-F., Neumann, E.: A Methyl Group Effect on the Conformation of Methylated [3.2]Metacyclophan-10-enes. Chemische Berichte. 126, 1495-1497 (1993).
Grützmacher, Hans-Friedrich, and Neumann, Ekkehard. “A Methyl Group Effect on the Conformation of Methylated [3.2]Metacyclophan-10-enes”. Chemische Berichte 126.6 (1993): 1495-1497.
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