(+)-Cannabispirenone-A: Synthesis and Absolute Configuration

References

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• The ketoaldehyde (i) has m/z 276 (10% R.I.) 247 100. NMR: δ9.4, s
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• We acknowledge support of the M. J. Murdock Charitable Trust of Research Corporation, the Petroleum Research Fund administered by the American Chemical Society and the National Institutes of Health Biomedical Research Support Grant No. 2-S07-RR07170–06. We would also like to thank Xenia Kovacs of G. D. Searle and Co. for the ORD spectrum
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