CRYSTAL-STRUCTURES OF 6-METHYL-3-PHENYLSULFONYLCHROMAN-4-ONE AND TRANS-6-METHYL-3-PHENYLSULFONYLCHROMAN-4-OL

The crystal structures of (i) CH3(C9H6O2)SO2C6H5 and (ii) CH3(C9H8O2)S O2-C6H5 have been determined by X-ray diffraction. (i) crystallizes in the monoclinic space group P2(1)/c with unit cell parameters a = 8.81 4(1)Angstrom, b = 10.310(1)Angstrom, c = 15.841(4)Angstrom, beta = 98. 17(1)degrees, and Z = 4, and (ii) crystallizes in the orthorhombic spa ce group P2(1)2(1)2(1) With Unit cell parameters a = 6.206(1)Angstrom, b = 11.752(5)Angstrom, c = 19.865(3)Angstrom, and Z = 4. The pyran ri ng in both of them is in the distorted half-chair conformation with di ffering degrees of distortion from the ideal.