... layer was Page 7. 1450 HELVETICA CHIMICA ACTA - Vol. 68 (1985) separated off and the aq. layer was shaken with E t 2 0 (2 x 50 ml). The combined org. ... 4-jtrans-4-Pentylcyclohexyl) benzylBromidr (3; n = 5,p = I). Br2 (3.2 g, 0.020 mol) was added dropwise to a soh. ...