115387-59-2Relevant academic research and scientific papers
Photochemistry of estra-5,7-diene-3β,17β-diol 17-acetate and its 9,10-seco isomer, 10-desmethyl analogues of pro- and previtamin D. 1. "Reversible" isomerization reactions
Koolstra, R. B.,Cornelisse, J.,Jacobs, H. J. C.
, p. 526 - 533 (1987)
In analogy with the photochemistry of 7,8-didehydrocholesterol (provitamin D), irradiation of the 10-desmethyl steroid estra-5,7-diene-3β,17β-diol 17-acetate leads to a photoequilibrated mixture of steroid-5,7-dienes and 9,10-seco-5(10),6,8-trienes.In addition, a thermally unstable bicyclohexene derivative is found.From the composition of the quasi-photostationary state, the ratios of the quantum yields of the various interconversions are estimated.Differences with the photochemistry in the 10-methyl series are discussed in relation to conformational differences.
