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Total Synthesis of 19-Norsteroids. I. d,l-Estrone Methyl Ether

✍ Scribed by Windholz, Thomas B.; Fried, John H.; Patchett, Arthur A.

Book ID: 125996834
Publisher: American Chemical Society
Year: 1963
Tongue: English
Weight: 420 KB
Volume: 28
Category: Article
ISSN: 0022-3263
DOI: 10.1021/jo01039a056

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## Abstract The cationic cyclization of 2‐[6‐(__m__‐methoxyphenyl)‐(__E__)‐3‐hexenyl]‐3,5‐dimethyl‐2‐cyclopentenol (**3**) was investigated. Exclusive formation of 1‐ and 3‐methoxy‐15α,17‐dimethyl‐1,3,5(10), 13(17)‐gonatetraene (**4** and **5**) was observed, indicating complete stereoselectivity i