Patent number: 6028069
Abstract: Cyclic sulphones of formula (I) are disclosed, in which: R.sup.1 and R.sup.2 each independently of one another stand for H, A, CF.sub.3, CH.sub.2 F, CHF.sub.2, C.sub.2 F.sub.5, Hal, OH, OA, NH.sub.2, NHA, NA.sub.2, NO.sub.2 or CN; X stands for CR.sup.4 R.sup.5, C.dbd.Z, O, S, NH, NA or NR.sup.3 ; Y stands for CR.sup.6 R.sup.7, C.dbd.Z, O, NH, NA, or NR.sup.3 ; Z stands for O, S, NH, NA, NOH, NOA, CH.sub.2, CHA or CA.sub.2 ; R.sup.4, R.sup.5, R.sup.6 and R.sup.7 each independently of one another stand for H, A, R.sup.3, Hal, OH, OA, SH, SA, NH.sub.2, NHA or NA.sub.2, or alternatively, R.sup.5 and R.sup.6 or R.sup.7 and R.sup.8 can together represent a bond, only one such bond being present in each molecule; R.sup.4 and R.sup.5 together can also stand for O--(CH.sub.2).sub.2 --O or O--(CH.sub.2).sub.3 --O; R.sup.8 and R.sup.9 each independently of one another stand for H or A; A stands for alkyl with 1-6 C atoms; Hal stands for F, Cl, Br or I; and R.sup.
Type:
Grant
Filed:
March 30, 1999
Date of Patent:
February 22, 2000
Assignee:
Merck Patent Gesellschaft mit berschranker Haftung
Inventors:
Manfred Baumgarth, Rolf Gericke, Klaus-Otto Minck, Norbert Beier