triphenyl<(2-tetrahydropyranyloxy)methyl>phosphonium chloride | 56061-88-2

• 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: triphenyl<(2-tetrahydropyranyloxy)methyl>phosphonium chloride
• 英文别名: Oxan-2-yloxymethyl(triphenyl)phosphanium;chloride
• CAS: 56061-88-2
• 化学式: C₂₄H₂₆O₂P*Cl
• 分子量: 412.896
• InChiKey: SNLLCSDUARMKPB-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  1.49
• 重原子数：
  28
• 可旋转键数：
  6
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (3aR,4S,6R,6aR)-tetrahydro-6-methoxy-2,2-dimethylfuro-[3,4-d][1,3]dioxole-4-carbaldehyde 、 triphenyl<(2-tetrahydropyranyloxy)methyl>phosphonium chloride 在 正丁基锂 作用下， 以 四氢呋喃 、 正己烷 为溶剂， 以65%的产率得到methyl 5-deoxy-2,3-O-isopropylidene-6-O-(oxan-2-yl)-β-D-ribo-hex-5-enofuranoside
  参考文献：
  名称：

  甲基5-脱氧-5-（二羟基膦酰基）羟甲基-2,3-O-异亚丙基-β-d-呋喃呋喃糖苷的制备，d-核糖5-磷酸羟甲基类似物的前体

  摘要：

  摘要描述了5-脱氧-5-（二羟基膦基）羟甲基-d-核糖的前体的合成，5-doxy-（2-羟基膦基）羟甲基-d-核糖的等排类似物。该化合物与天然磷酸酯的不同之处在于，它掺入了膦酸残基来代替正磷酸酯单酯基，并且在将磷原子连接至分子碳水化合物部分的C原子上引入了羟基。该羟基的目的是向膦酸残基提供通常在天然磷酸酯的简单膦酸类似物中缺乏的亲水特性。

  DOI：

  10.1016/0008-6215(83)88078-1

文献信息

• Studies on the intramolecular competitive addition of carbon radicals to aldehydo and alkenyl groups
  作者：Richard Andrew Walton、Bert Fraser-Reid

  DOI：10.1021/ja00015a037

  日期：1991.7

  Cyclizations of ω-formylalkyl radicals can provide an efficient route to the corresponding cycloalkanols. However, if an ω-vinyl group is present an alternative mode of cyclization exists, and there is competition between cycloalkanol and methyl cycloalkane formation (i.e. (C=O) n versus (C=C) m ). Cyclohexanol formation, (C=O) 6 , usually overwhelms any alternative process, but cyclopentanol and methylcyclopentane

  ω-甲酰基烷基的环化可以为相应的环烷醇提供有效的途径。然而，如果存在ω-乙烯基，则存在另一种环化模式，并且环烷醇和甲基环烷烃形成之间存在竞争（即(C=O) n 与(C=C) m ）。环己醇的形成，(C=O) 6 ，通常压倒任何替代工艺，但环戊醇和甲基环戊烷工艺（(C=O) 5 和 (C=C) 5 ）可能具有竞争力。后一个过程涉及经过充分研究的 5-己烯基自由基闭环，因此通过选择合适的底物，其中两种环化模式都是最佳的，我们获得了环戊醇 (C=O) 5 形成的速率数据直接-竞赛实验。kc=O ≥9.6×10 5 s -1 的值与Beckwith和Hay得到的值一致。
• Synthesis and Properties of Substituted CBI Analogs of CC-1065 and the Duocarmycins Incorporating the 7-Methoxy-1,2,9,9a-tetrahydrocyclopropa[<i>c</i>]benz[<i>e</i>]indol-4-one (MCBI) Alkylation Subunit:  Magnitude of Electronic Effects on the Functional Reactivity
  作者：Dale L. Boger、Jeffrey A. McKie、Hui Cai、Barbara Cacciari、P. G. Baraldi

  DOI：10.1021/jo952033g

  日期：1996.1.1

  radical-alkene cyclization (24 --> 25, 32 --> 33) for completion of the synthesis of the 1,2-dihydro-3H-benz[e]indole skeleton and final Ar-3' alkylation of 28 for introduction of the activated cyclopropane. Two approaches to the implementation of the key 5-exo-trig free radical cyclization are detailed with the former proceeding with closure of 24 to provide 25 in which the required product functionalization was

  在以下文献中描述了7-甲氧基-1,2,9,9a-四氢环丙烷[c]苯并[e]吲哚-4-酮（MCBI）的合成，MCBI是带有对C4羰基的C7甲氧基的取代的CBI衍生物。努力确定对试剂的化学和功能反应性的潜在电子效应的大小。通过修饰的Stobbe缩合/ Friedel-Crafts酰化反应制备MCBI烷基化亚基的核心结构，以生成适当官能化的萘前体（15和20），然后进行5-exo-trig芳基自由基-烯烃环化（24-> 25、32-> 33）完成1，2-二氢-3H-苯并[e]吲哚骨架的合成，最后28的Ar-3'烷基化，以引入活化的环丙烷。详细介绍了实现关键的5-exo-trig自由基环化的两种方法，前者以24结束，以提供25，其中在环化之前引入了所需的产品功能化，而后者则用了环化产物的Tempo捕集器官能化的未反应的烯烃底物32提供33％。后一种简洁的方法以极好的总转化率（27-30％）以12-
• Synthesis, Chemical Properties, and Preliminary Evaluation of Substituted CBI Analogs of CC-1065 and the Duocarmycins Incorporating the 7-Cyano-1,2,9,9a-tetrahydrocyclopropa[<i>c</i>]benz[<i>e</i>]indol-4-one Alkylation Subunit:  Hammett Quantitation of the Magnitude of Electronic Effects on Functional Reactivity
  作者：Dale L. Boger、Nianhe Han、Christine M. Tarby、Christopher W. Boyce、Hui Cai、Qing Jin、Paul A. Kitos

  DOI：10.1021/jo9605298

  日期：1996.1.1

  The synthesis of 7-cyano-1,2,9,9a-tetrahydrocyclopropa[c]benz[e]indol-4-one (CCBI), a substituted CBI derivative bearing a C7 cyano group, is described in efforts that establish the magnitude of potential electronic effects on the functional reactivity of the agents. The CCBI alkylation subunit was prepared by a modified Stobbe condensation/Friedel-Crafts acylation for generation of the appropriately functionalized naphthalene precursors followed by 5-exo-trig aryl radical-alkene cyclization for synthesis of the 1,2-dihydro-3H-benz[e]indole skeleton and final Ar-3' alkylation for introduction of the activated cyclopropane. The most concise approach provided the CCBI subunit and its immediate precursor in 14-15 steps in superb overall conversions (15-20%). Resolution of an immediate CCBI precursor and its incorporation into both enantiomers of 34-39, analogs of CC-1065 and the duocarmycins, are detailed. A study of the solvolysis reactivity and regioselectivity of N-BOC-CCBI (25) revealed that introduction of the C7 nitrile slowed the rate of solvolysis but only to a surprisingly small extent. Classical Hammett quantitation of the effect provided a remarkably small rho (-0.3), indicating an exceptionally small C7 substituent electronic effect on functional reactivity. Additional kinetic studies of acid-catalyzed nucleophilic addition proved inconsistent with C4 carbonyl protonation as the slow and rate-determining step but consistent with a mechanism in which protonation is rapid and reversible followed by slow and rate-determining nucleophilic addition to the cyclopropane requiring both the presence and assistance of a nucleophile (S(N)2 mechanism). No doubt this contributes to the DNA alkylation selectivity of this class of agents and suggests that the positioning of an accessible nucleophile (adenine N3) and not C4 carbonyl protonation is the rate-determining step controlling the sequence selectivity of the DNA alkylation reaction, This small electronic effect on the solvolysis rate had no impact on the solvolysis regioselectivity, and stereoelectronically-controlled nucleophilic addition to the least substituted carbon of the activated cyclopropane was observed exclusively. Consistent with past studies, a direct relationship between solvolysis stability and cytotoxic potency was observed with the CCBI-derived agents providing the most potent analogs in the CBI series, and these observations were related to the predictable Hammett substituent effects. For the natural enantiomers, this unusually small electronic effect on functional reactivity had no perceptible effect on their DNA alkylation selectivity. Similar effects of the C7 cyano substituent on the unnatural enantiomers were observed, and they proved to be 4-10x more effective than the corresponding CBI-based unnatural enantiomers and 4-70x less potent than the CCBI natural enantiomers.
• An improved synthesis of 1,2,9,9a-tetrahydrocyclopropa[c]benz[e]indol-4-one (CBI): a simplified analog of the CC-1065 alkylation subunit
  作者：Dale L. Boger、Weiya Yun、Bradley R. Teegarden

  DOI：10.1021/jo00036a023

  日期：1992.5

  A concise and improved synthesis of 11, the immediate precursor to N-BOC-CBI and related analogues of CC-1065 incorporating the 1,2,9,9a-tetrahydrocyclopropa[c]benz[e]indol-4-one alkylation subunit, is detailed based on a direct 5-exo-trig aryl radical-alkene cyclization for 3-hydroxymethylindoline generation.
• EP0888301A4
  申请人：——

  公开号：EP0888301A4

  公开（公告）日：2002-05-08