Some time ago we reported the preparation of oestrone from ergosterol. Although no details of the synthesis could be included in that short note, we felt that since the entire synthesis had been checked by two of us, and since the oestrone was shown to be identical in all respects with the natural hormone, no doubt could exist as to the validity of our preparation. However, soon after the appearance of our note, Windaus and Deppe2 reported that they ...
