# Tetrahedron: Asymmetry

Tetrahedron: Asymmetry > 2001 > 12 > 23 > 3257 - 3266

Tetrahedron: Asymmetry > 2001 > 12 > 23 > 3213 - 3216

Tetrahedron: Asymmetry > 2001 > 12 > 23 > 3297 - 3304

Tetrahedron: Asymmetry > 2001 > 12 > 23 > 3209 - 3211

Tetrahedron: Asymmetry > 2001 > 12 > 23 > 3319 - 3324

^{1}H NMR spectroscopic data.

Tetrahedron: Asymmetry > 2001 > 12 > 23 > 3305 - 3312

Tetrahedron: Asymmetry > 2001 > 12 > 23 > 3223 - 3234

Tetrahedron: Asymmetry > 2001 > 12 > 23 > 3241 - 3249

Tetrahedron: Asymmetry > 2001 > 12 > 23 > 3313 - 3317

_{2}-symmetric sulphur derivatives. Resolution of 2,2',6,6'-tetramethoxy-3,3'-dimercapto-1,1'-biphenyl 7 was achieved by conversion to the corresponding dithiocarbonate diastereomers. The absolute configuration of (aR)-(-)-7 and (aS)-(+)-7 was assigned unambiguously.

Tetrahedron: Asymmetry > 2001 > 12 > 23 > 3293 - 3296

Tetrahedron: Asymmetry > 2001 > 12 > 23 > 3217 - 3221

Tetrahedron: Asymmetry > 2001 > 12 > 23 > 3235 - 3240

_{3}-agonist) in 99.5% e.e. and 36% overall yield. The unwanted enantiomer (S)-1 (61.9% e.e.; recovered in 57% yield from the crystallization filtrate) can be reused...

Tetrahedron: Asymmetry > 2001 > 12 > 23 > 3273 - 3279

Tetrahedron: Asymmetry > 2001 > 12 > 23 > 3281 - 3291

Tetrahedron: Asymmetry > 2001 > 12 > 23 > 3251 - 3256