875444-08-9Relevant articles and documents
Synthesis and crystal structure of (4S,5R)-5-[3,5-BIS(trifluoromethyl) phenyl]-4-methyl-1,3-oxazolidin-2-one
Cui, Hong,Zhao, Qing Jie,Chen, Fa Pu,Chai, Xiao Yun,Zou, Yan,Hu, Hong Gang,Jin, Yong Sheng,Yu, Shi Chong
, p. 8043 - 8046 (2013)
The crystal structure of the (4S,5R)-5-[3,5-bis(trifluoromethyl)phenyl]-4- methyl-1,3-oxazolidin-2-one has been determined by single crystal X-ray diffraction method. The compound crystallizes in the monoclinic system, space group P2(1) with a = 11.867(4) ?, b = 5.6968(19) ?, c = 20.258(7) ?, α = 90.00°, β = 91.866(4)°, γ = 90.00°, Z = 4, V = 1368.8(8) ?3, Dx = 1.520 Mg/m3, F (000) = 632, μ(MoKα) = 0.157 mm-1, R = 0.0562 and wR = 0.1744 for 3675 reflections with I > 2σ(I). X-Ray analysis reveals that the benzene and oxazolidin rings are non-coplanar. The oxazolidin ring displays a twist conformation. The two molecules interact with each other by two strong N-H···O hydrogen bonds. Herein, we report the synthesis and crystal structure of (4S,5R)-5-[3,5- bis(trifluoromethyl)phenyl]-4-methyl-1,3-oxazolidin-2-one.
Crystal form of oxazolidinone intermediate of Ana Qubo and preparation method thereof
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Paragraph 0030-0033, (2017/07/11)
The invention relates to Ana Qubo, and particularly relates to a crystal form of an oxazolidinone intermediate of Ana Qubo and a preparation method thereof. An angle of reflection 2theta of an X-ray powder diffraction pattern of the crystal form of the ox
Method for preparing arene beta-amino alcohol of optical voidness
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Paragraph 0187; 0188; 0189, (2016/10/08)
The invention discloses a method for preparing arene beta-amino alcohol of optical voidness. The method is characterized by comprising the following steps that a D or L-amino acid initial material reacts with benzyl chloroformate CBz-Cl or BOC acid anhydr