반응 #828856

반응 방정식

cis-1-{2-[4-(6-methoxy-2-phenyl-1,2,3,4-tetrahydronaphthalen-1-yl)phenoxy]ethyl}pyrrolidine

HBr

→

cis-6Phenyl-5-[4-(2-pyrrolidin-1-ylethoxy)phenyl]-5,6,7,8-tetrahydronaphthalene-2-ol

용매

acetic acid

반응 조건

후처리

1. 1
   온도The solution was cooled
2. 2
   여과the resulting white precipitate was collected by filtration
3. 3
   workup.DISSOLUTIONThe hydrobromide salt (9.6 g, 69%) was dissolved in CHCl3 /MeOH
4. 4
   기타The layers were separated
5. 5
   추출the aqueous layer was further extracted with CHCl3 /MeOH
6. 6
   건조The combined organic layers were dried (MgSO4)
7. 7
   여과filtered
8. 8
   농축concentrated
9. 9
   기타to yield product as an off-white foam

실험 절차

A mixture of cis-1-{2-[4-(6-methoxy-2-phenyl-1,2,3,4-tetrahydronaphthalen-1-yl)phenoxy]ethyl}pyrrolidine (12 g, 28 mmol), acetic acid (75 mL), and 48% HBr (75 mL) was heated at 100° C. for 15 h. The solution was cooled and the resulting white precipitate was collected by filtration. The hydrobromide salt (9.6 g, 69%) was dissolved in CHCl3 /MeOH and was stirred with satd NaHCOa (aq). The layers were separated and the aqueous layer was further extracted with CHCl3 /MeOH. The combined organic layers were dried (MgSO4), filtered, and concentrated to yield product as an off-white foam. 1H NMR (250 MHz, CDCl3): δ 7.04 (m, 3H), 6.74 (m, 2H), 6.63 (d, J =8.3 Hz, 2H), 6.50 (m, 3H), 6.28 (d, J =8.6 Hz, 2H), 4.14 (d, J=4.9 Hz, 1H), 3.94 (t, J=5.3 Hz, 2H), 3.24 (dd, J=12.5, 4.1 Hz, 1H), 2.95 (m, 4H), 4H), 2.14 (m, 1H), 1.88 (m, 4H), 1.68 (m, 1H).

출처