13C chemical shifts of 1-substituted camphenes
- 1 January 1975
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 2
- No. 6,p. 539-541
- https://doi.org/10.1039/p29750000539
Abstract
13 C Chemical shifts of a series of 1-substituted camphenes (1)–(10) are reported. Whereas low-field β-shifts for C(6) and C(7) exhibit normal behaviour for secondary carbons in bridgehead substituted fused ring systems, more strongly electron-withdrawing substituents bring about greater upfield shifts for the sp2 hybridised β-C(2). In the 1-hydroxymethyl derivative (6) the presence of intramolecular hydrogen bonding does not bring about a low field shift for C(2).Keywords
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