(2R,3R,5R,6R)-2,3-bis(hydroxydiphenylmethyl)-5,6-dimethoxy-5,6-dimethyl<1,4>dioxane

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: (2R,3R,5R,6R)-2,3-bis(hydroxydiphenylmethyl)-5,6-dimethoxy-5,6-dimethyl<1,4>dioxane
• 英文别名: (2R,3R,5R,6R)-2,3-bis(hydroxydiphenylmethyl)-5,6-dimethoxy-5,6-dimethyl-1,4-dioxane；(R,R,R,R)-2,3-dimethoxy-2,3-dimethyl-1,4-dioxane-5,6-bis-diphenylmethanol；TARTROL；[(2R,3R,5R,6R)-3-[hydroxy(diphenyl)methyl]-5,6-dimethoxy-5,6-dimethyl-1,4-dioxan-2-yl]-diphenylmethanol
• 化学式: C₃₄H₃₆O₆
• 分子量: 540.656
• InChiKey: AEUCLGLWKPMBDF-SEVDZJIVSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.9
• 重原子数：
  40
• 可旋转键数：
  8
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  77.4
• 氢给体数：
  2
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  (2R,3R,5R,6R)-2,3-bis(hydroxydiphenylmethyl)-5,6-dimethoxy-5,6-dimethyl<1,4>dioxane 在 三乙胺 、 三氯化磷 作用下， 以 四氢呋喃 为溶剂， 以1.62 g的产率得到(2R,3R,4aR,9aR)-7-chloro-2,3-dimethoxy-2,3-dimethyl-5,5,9,9-tetraphenylhexahydro-[1,4]dioxino[2,3-e][1,3,2]dioxaphosphepine
  参考文献：
  名称：

  镍 (0) - 催化末端丙二烯的氢氰化：支链烯丙腈的区域选择性和对映选择性方法

  摘要：

  本文报道了高度支化的区域选择性镍 (0) 催化的单取代和 1,1-二取代丙二烯的氢氰化以及 1,1-二取代丙二烯的不对称氢氰化，从而获得支化的叔和季 β,γ-烯丙基腈类。对于末端丙二烯的区域选择性氢氰化，镍 (0)/Biphephos 催化体系适用于包含酯、THP 基团、伯脂肪族碘化物和游离羧酸等官能团的底物范围，提供高达 96% 的产率。通过将基于 Ni(0)/TADDOL 的双亚磷酸酯催化剂应用于 1,1-二取代丙二烯的催化体系，支链季烯丙基腈的收率高达 99%，对映选择性高达 86%。这两种协议都利用了可管理的 HCN 源并证明了良好的原子经济性。此外，

  DOI：

  10.1002/adsc.202201189
• 作为产物：
  描述：

  3,3-二甲氧基-2-丁酮 在 三氟化硼乙醚 作用下， 以 四氢呋喃 、 乙酸乙酯 为溶剂， 反应 8.0h， 生成 (2R,3R,5R,6R)-2,3-bis(hydroxydiphenylmethyl)-5,6-dimethoxy-5,6-dimethyl<1,4>dioxane
  参考文献：
  名称：

  Transacetalization of Diethyl Tartrate with Acetals of .alpha.-Dicarbonyl Compounds: A Simple Access to a New Class of C2-Symmetric Auxiliaries and Ligands

  摘要：

  A simple access to a new class of C-2-symmetric auxiliaries and ligands is based on the transacetalization of diethyl tartrate (1) with monoacetals of butane-2,3-dione in the key step. Acid-catalyzed reaction of 1 with 2 equiv of 3,3-diethoxybutan-2-one (2) gives the C-2-symmetric 1,4-dioxane 7 in 88% yield. Reduction of 7 with LiAlH4 affords the crystalline diol 9. The structure of 7 was established from the X-ray structure of 9. Dioxane 7 was converted by standard methodology into the diphosphine 24 and the TARTROL 22. Reaction of 1 with 3,3-dimethoxybutan-2-one (3) in the presence of BF3-etherate gives in analogy to the formation of 7 the 1,4-dioxane 8. This compound was transformed into the diphosphine 25 and the TARTROL 23. The trans-diaxial relationship of the methoxy groups present in 8 could be deduced without X-ray analysis from the H-1-NMR spectrum of 23.

  DOI：

  10.1021/jo00130a019

文献信息

• Enantioselective Synthesis of Atropisomeric Vinyl Arene Compounds by Palladium Catalysis: A Carbene Strategy
  作者：Jia Feng、Bin Li、Yun He、Zhenhua Gu

  DOI：10.1002/anie.201509571

  日期：2016.2.5

  An efficient palladium‐catalyzed asymmetric synthesis of axially chiral vinyl arenes from aryl bromides and hydrazones is reported. The products were easily oxidized to axially chiral biaryl compounds, and the phosphine oxides were readily reduced to phosphine ligands.

  据报道，由芳基溴化物和类化合物可以有效地钯催化不对称合成轴向手性乙烯基芳烃。产物易于氧化成轴向手性联芳基化合物，氧化膦易于还原成膦配体。
• TARTROL-derived chiral phosphine–phosphite ligands and their performance in enantioselective Cu-catalyzed 1,4-addition reactions
  作者：Mehmet Dindaroğlu、Sema Akyol、Hamza Şimşir、Jörg-Martin Neudörfl、Anthony Burke、Hans-Günther Schmalz

  DOI：10.1016/j.tetasy.2013.04.008

  日期：2013.6

  (with a 1,2-phenylene backbone) were synthesized and evaluated in the Cu-catalyzed asymmetric 1,4-addition of Grignard reagents to cyclohexenone. Ligands with bulky substituents at the ortho- and para-positions to the chiral phosphite moiety were found to be the most selective affording the 1,4-addition products with enantioselectivities of up to 84% ee.

  通过使用（R，R，R，R）-2,3-二甲氧基-2,3-二甲基-1,4-二恶烷-5,6-双二联苯甲醇（TARTROL）作为手性结构单元，一组六合成了模块化的膦-亚磷酸酯配体（具有1,2-亚苯基骨架），并在Cu催化的格氏试剂与环己烯酮的不对称1,4-加成反应中进行了评估。发现在手性亚磷酸酯部分的邻位和对位具有大的取代基的配体是最具有选择性的，提供对映选择性高达84％ee的1，4-加成产物。
• Transacetalization of Diethyl Tartrate with Acetals of .alpha.-Dicarbonyl Compounds: A Simple Access to a New Class of C2-Symmetric Auxiliaries and Ligands
  作者：Ulrich Berens、Dieter Leckel、Susanne C. Oepen

  DOI：10.1021/jo00130a019

  日期：1995.12

  A simple access to a new class of C-2-symmetric auxiliaries and ligands is based on the transacetalization of diethyl tartrate (1) with monoacetals of butane-2,3-dione in the key step. Acid-catalyzed reaction of 1 with 2 equiv of 3,3-diethoxybutan-2-one (2) gives the C-2-symmetric 1,4-dioxane 7 in 88% yield. Reduction of 7 with LiAlH4 affords the crystalline diol 9. The structure of 7 was established from the X-ray structure of 9. Dioxane 7 was converted by standard methodology into the diphosphine 24 and the TARTROL 22. Reaction of 1 with 3,3-dimethoxybutan-2-one (3) in the presence of BF3-etherate gives in analogy to the formation of 7 the 1,4-dioxane 8. This compound was transformed into the diphosphine 25 and the TARTROL 23. The trans-diaxial relationship of the methoxy groups present in 8 could be deduced without X-ray analysis from the H-1-NMR spectrum of 23.
• Nickel(0)‐Catalyzed Hydrocyanation of Terminal Allenes: A Regio‐ and Enantioselective Approach to Branched Allylic Nitriles
  作者：Timm Bury、Sven Kullmann、Bernhard Breit

  DOI：10.1002/adsc.202201189

  日期：2023.2.7

  A highly branched regioselective nickel(0)-catalyzed hydrocyanation of mono- and 1,1-disubstituted allenes as well as an asymmetric hydrocyanation of 1,1-disubstituted allenes are reported herein, giving access to branched tertiary and quaternary β,γ-allylic nitriles. For the regioselective hydrocyanation of terminal allenes, a nickel(0)/Biphephos catalytic system applicable to a substrate scope containing

  本文报道了高度支化的区域选择性镍 (0) 催化的单取代和 1,1-二取代丙二烯的氢氰化以及 1,1-二取代丙二烯的不对称氢氰化，从而获得支化的叔和季 β,γ-烯丙基腈类。对于末端丙二烯的区域选择性氢氰化，镍 (0)/Biphephos 催化体系适用于包含酯、THP 基团、伯脂肪族碘化物和游离羧酸等官能团的底物范围，提供高达 96% 的产率。通过将基于 Ni(0)/TADDOL 的双亚磷酸酯催化剂应用于 1,1-二取代丙二烯的催化体系，支链季烯丙基腈的收率高达 99%，对映选择性高达 86%。这两种协议都利用了可管理的 HCN 源并证明了良好的原子经济性。此外，