Stereoselective Synthesis and X-Ray Structure Determination of Labeled [1, 2, 3-13C3]-1-(Phenylsulfinyl)-3-Benzyloxyacetone
作者:Ernest M. Asani、Victor N. Khrustalev、Rachel M. Williamson、Rodolfo A. Martinez、Clifford J. Unkefer、Tatiana V. Timofeeva
DOI:10.1007/s10870-007-9226-5
日期:2007.10
[1,2,3-13C3]-1-(Phenylsulfinyl)-3-benzyloxyacetone, C16H16O3S, (3) has been synthesized and its crystal structure has been determined by a single-crystal X-ray diffraction analysis. The X-ray diffraction study revealed that compound 3 crystallizes in the monoclinic crystal system in the acentric space group Pc, with cell constants at T = 100 K: a = 16.073(5), b = 5.5079(16), c = 7.949(2) Å, β = 100.221(4)°, V = 692.6(3) Å3, Z = 2, d calc = 1.383 g/cm3. Compound 3 contains the chiral tetravalent three-coordinated sulfur atom, which has a distorted tetrahedral configuration with a lone electron pair occupying one of the tetrahedron vertices. In the crystal, the molecules are packed in stacks along the b axis; the stacks consist of the molecules of the same chirality. Furthermore, the stacks of the molecules of the opposite chirality alternate along the c axis. The molecules in neighboring stacks are arranged by head-to-tail orientations. There are no short intermolecular contacts in the crystal of 3.
合成了 [1,2,3-13C3]-1-(苯亚磺酰基)-3-苄氧基丙酮,C16H16O3S,(3)并通过单晶 X 射线衍射分析确定了其晶体结构。X 射线衍射研究表明,化合物 3 在单斜晶系中结晶,属于中心空间群 Pc,在 T = 100 K 时的晶胞常数为:a = 16.073(5), b = 5.5079(16), c = 7.949(2) Å, β = 100.221(4)°, V = 692.6(3) Å3, Z = 2, d calc = 1.383 g/cm3.化合物 3 包含手性四价三配位硫原子,它具有扭曲的四面体构型,一个孤电子对占据了四面体的一个顶点。在晶体中,分子沿 b 轴堆积,堆积的分子具有相同的手性。此外,相反手性的分子堆沿 c 轴交替排列。相邻堆栈中的分子按头对尾的方向排列。3 的晶体中没有短的分子间接触。