Phan Ung Khu
Co 1 bai tap nhu the nay.
Khi cho (R)-2-bromobutane tac dung voi KOHd/ancol/t0 thi biet rang pu dien ra theo co che E2 la 60% va theo co che E1 la 40%.Xac dinh ti le dong phan E,Z cua buten-2.
Minh ko biet la khi xac dinh E,Z minh co tinh duoc ti le E,Z cu the hay ko.Va co the co buten-1 hay khong khi khu E1.
Theo nhu minh biet,thi phuc cis co nang luong cao hon phuc trans va nhu vay sp chu yeu se la E trong ca 2 loai E1,E2.Cac sach noi rat chung chung,ko noi ro la nhu the nao.Ko biet co dung hay khong.
Cam on moi nguoi truoc.
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