Absolute Configuration Determination of Two Optically Active Cyclopropyl-Ketoacids: (1′S, 3S) 3-(2′,2′-Dichloro-1′-methyl-cyclopropyl)-6-oxo-heptanoic acid and (1′S, 3S) 3-(2′,2′-Dibromo-1′-methyl-cyclopropyl)-6-oxo-heptanoic acid

首页> 外文期刊>Journal of Chemical Crystallography >Absolute Configuration Determination of Two Optically Active Cyclopropyl-Ketoacids: (1′S, 3S) 3-(2′,2′-Dichloro-1′-methyl-cyclopropyl)-6-oxo-heptanoic acid and (1′S, 3S) 3-(2′,2′-Dibromo-1′-methyl-cyclopropyl)-6-oxo-heptanoic acid

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Absolute Configuration Determination of Two Optically Active Cyclopropyl-Ketoacids: (1′S, 3S) 3-(2′,2′-Dichloro-1′-methyl-cyclopropyl)-6-oxo-heptanoic acid and (1′S, 3S) 3-(2′,2′-Dibromo-1′-methyl-cyclopropyl)-6-oxo-heptanoic acid

机译：两种旋光的环丙基-酮酸的绝对构型测定：（1'S，3S）3-（2'，2'-二氯-1'-甲基-环丙基）-6-氧代庚酸和（1'S，3S ）3-（2'，2'-二溴-1'-甲基-环丙基）-6-氧代庚酸

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Abstract The title compounds C₁₁H₁₆Cl₂O₃ (III) and C₁₁H₁₆Br₂O₃ (IV) have been prepared from (S)-Limonen. Their crystal structure and absolute configuration have been determined by X-ray analysis which confirmed the 1′S absolute configuration at the cyclopropyl moiety, in agreement with the known absolute configuration of the starting material. Both (III) and (IV) are orthorhombic, space group P2₁2₁2₁ with a = 7.2558(4) Å (for III) 7.4058(6) Å (for IV), b = 9.7885(5) Å (for III) 9.7459(7) Å (for IV), c = 17.7551(10) Å (for III) 18.0354(14) Å (for IV), α = 90°, β = 90°, γ = 90° and Z = 4.

机译：摘要标题化合物C _{11 H _{16 Cl _{2 O _{3 （III）和C _{11 < / sub> H _{16 Br _{2 O _{3 （IV）由（S）-Limonen制备。通过X射线分析确定了它们的晶体结构和绝对构型，该X射线分析证实了在环丙基部分上的1'S绝对构型与起始原料的已知的绝对构型一致。（III）和（IV）都是正交的，空间群P2 _{1 2 _{1 2 _{1 ，a = 7.2558（4）Å（对于III）7.4058（6）Å（对于IV），b = 9.7885（5）Å（对于III）9.7459（7）Å（对于IV），c = 17.7551（10）Å（对于III）18.0354（14）Å（对于IV），α= 90°，β= 90°，γ= 90°和Z = 4。}}}}}}}}}}}

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《Journal of Chemical Crystallography》 |2011年第3期|p.338-342|共5页
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机译：两种旋光性环丙基酮酸的绝对构型测定：（1'S，3S）3-（2'，2'-二氯-1'-甲基-环丙基）-6-氧代庚酸和（1'S，3S ）3-（2'，2'-二溴-1'-甲基-环丙基）-6-氧代庚酸
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Absolute Configuration Determination of Two Optically Active Cyclopropyl-Ketoacids: (1′S, 3S) 3-(2′,2′-Dichloro-1′-methyl-cyclopropyl)-6-oxo-heptanoic acid and (1′S, 3S) 3-(2′,2′-Dibromo-1′-methyl-cyclopropyl)-6-oxo-heptanoic acid

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