3,3-dimethoxy-2,2-dimethylpropionaldehyde | 18208-39-4

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 3,3-dimethoxy-2,2-dimethylpropionaldehyde
• 英文别名: 3,3-Dimethoxy-2,2-dimethylpropanal
• CAS: 18208-39-4
• 化学式: C₇H₁₄O₃
• 分子量: 146.186
• InChiKey: CIQFEAIIACKXLQ-UHFFFAOYSA-N

物化性质

• 沸点：
  188.1±20.0 °C(Predicted)
• 密度：
  0.945±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.5
• 重原子数：
  10
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.86
• 拓扑面积：
  35.5
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  3,3-dimethoxy-2,2-dimethylpropionaldehyde 在 palladium on activated charcoal 4-二甲氨基吡啶 、 ruthenium trichloride 、 sodium periodate 、 正丁基锂 、 camphor-10-sulfonic acid 、 氢气 、 四氯化钛 、 乙酰氯 、 N,N'-二环己基碳二亚胺 、 lithium diisopropyl amide 作用下， 以 四氢呋喃 、 四氯化碳 、 二氯甲烷 、 水 、 乙酸乙酯 、 乙腈 、 苯 为溶剂， 反应 24.5h， 生成 1-(benzenesulfonyl)-3-methyl-3-[(2R,3R,7S,10R)-2,3,10-trimethyl-1,4,6-trioxaspiro[4.5]decan-7-yl]butan-2-one
  参考文献：
  名称：

  Stereocontrolled synthesis of the C(1)-C(17) half of boromycin

  摘要：

  DOI：

  10.1021/ja00359a041
• 作为产物：
  描述：

  3-acetoxy-2,2-dimethylpropanal 在 对甲苯磺酸 、 pyridinium chlorochromate 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 32.0h， 生成 3,3-dimethoxy-2,2-dimethylpropionaldehyde
  参考文献：
  名称：

  Condensation of crotonic and tiglic acid dianions with aldehydes and ketones

  摘要：

  DOI：

  10.1021/jo00197a019

文献信息

• Metabolites of pentanedioic acid derivatives
  申请人：G. D. Searle & Co.

  公开号：US05055613A1

  公开（公告）日：1991-10-08

  The present invention relates to pentanedioic acid derivatives. The present invention further relates to pharmaceutical compositions containing such compounds and to the use of such compounds and compositions as hypolipidemic drugs.

  本发明涉及戊二酸衍生物。本发明还涉及含有这种化合物的药物组合物，以及将这种化合物和组合物用作降脂药物。
• Synthesis and Complete Stereochemical Assignment of Psymberin/Irciniastatin A
  作者：Xin Jiang、Jorge García-Fortanet、Jef K. De Brabander

  DOI：10.1021/ja0537068

  日期：2005.8.1

  We describe a concise and flexible synthetic avenue for the preparation of compounds with structures relevant to those proposed for the novel marine-derived differential cytotoxins psymberin and irciniastatin A. Our efforts led to their complete stereochemical assignment and the notion that psymberin and irciniastatin A are identical compounds. Our total synthesis features an interesting termini-differentiating

  我们描述了一种简洁灵活的合成途径，用于制备结构与新型海洋衍生差异细胞毒素 psymberin 和 irciniastatin A 相关的化合物。我们的努力导致了它们的完整立体化学分配以及 psymberin 和 irciniastatin A 相同的概念化合物。我们的全合成具有从 C2 对称双烯烃前体获得的二醛的有趣的末端差异化乳醇化、差向异构腈的温和铂催化水解、制备灵敏的亚胺酸甲酯的新方案和一锅法转化这些亚胺酯转化为 N-酰基胺。从片段 5-7 开始（每个片段准备 7-8 个步骤，
• Synthesis and complete stereochemical assignment of psymberin/irciniastatin for use as antitumor compounds
  申请人：Brabander De Jef

  公开号：US20070015821A1

  公开（公告）日：2007-01-18

  The invention relates to the synthesis and complete stereochemical assignments of cytotoxic compounds such as compound 28-a and its stereoisomers: The invention further provides processes for making the compounds, their synthetic intermediates, and for methods of using the compounds and their pharmaceutical compositions for the treatment of neoplastic diseases.

  该发明涉及合成和对细胞毒性化合物的完全立体化学赋值，如化合物28-a及其立体异构体。该发明还提供了制备这些化合物、它们的合成中间体的方法，以及使用这些化合物及其药物组合物治疗肿瘤性疾病的方法。
• A Novel Approach to the Synthesis of Taxol. A Synthesis of Optically Active 3,7-dibenzyloxy-4,8-di-<i>t</i>-butyl-dimethylsiloxy-5,5-dimethyl-6-<i>p</i>-methoxybenzyloxy-2-octanone by Way of Stereoselective Aldol Reactions
  作者：Teruaki Mukaiyama、Isamu Shiina、Kaku Sakata、Takayuki Emura、Keitarou Seto、Masahiro Saitoh

  DOI：10.1246/cl.1995.179

  日期：1995.3

  of diastereoselective aldol reaction between 4-benzyloxy-5-t-butyldimethylsiloxy-2,2-dimethyl-3-p-methoxy-benzyloxypentanal (3) and ketene silyl acetal 4 using MgBr2·OEt2 as a catalyst. The chiral pentanal 3 was synthesized either by asymmetric aldol reaction of both prochiral aldehyde 5 and ketene silyl acetal 4 using a chiral Lewis acid or by diastereoselective aldol reaction between the chiral aldehyde

  光学活性 3,7-dibenzyloxy-4,8-​​di-t-butyldimethylsiloxy-5,5-dimethyl-6-p-methoxybenzyloxy-2-octanone (2) 已通过 4-benzyloxy- 之间的非对映选择性羟醛反应合成5-叔丁基二甲基甲硅烷氧基-2,2-二甲基-3-对甲氧基-苄氧基戊醛(3)和乙烯酮甲硅烷基缩醛4，以MgBr2·OEt2为催化剂。手性戊醛 3 是通过使用手性路易斯酸的前手性醛 5 和烯酮甲硅烷基缩醛 4 的不对称羟醛反应合成的，或者通过衍生自 L-丝氨酸的手性醛 6 和衍生自异丁酸甲酯的烯醇锂之间的非对映选择性羟醛反应合成的。
• Studies toward the Unique Pederin Family Member Psymberin: Full Structure Elucidation, Two Alternative Total Syntheses, and Analogs
  作者：Yu Feng、Xin Jiang、Jef K. De Brabander

  DOI：10.1021/ja3057612

  日期：2012.10.17

  Two synthetic approaches to psymberin have been accomplished. A highly convergent first generation synthesis led to the complete stereochemical assignment and demonstrated that psymberin and irciniastatin A are identical compounds. This synthesis featured a diastereoselective aldol coupling between the aryl fragment and a central tetrahydropyran core and a novel one-pot procedure to convert an amide, via intermediacy of a sensitive methyl imidate, to the N-acyl aminal reminiscent of psymberin. The highlights of the second generation synthesis include an efficient iridium-catalyzed enantioselective bisallylation of neopentyl glycol and a stepwise Sonogashira coupling/cycloisomerization/reduction sequence to construct the dihydroisocoumarin unit. The two synthetic avenues were achieved in 17-18 steps (longest linear sequence, similar to 14-15 isolations) from 3 fragments prepared in 7-8 (first generation) and 3-8 (second generation) steps each. This convergent approach allowed for the preparation of sufficient amounts of psymberin (similar to 0.5 g) for follow-up biological studies. Meanwhile, our highly flexible strategy enabled the design and synthesis of multiple analogs, including a psymberin pederin hybrid, termed psympederin, that proved crucial to a comprehensive understanding of the chemical biology of psymberin and related compounds that will be described in a subsequent manuscript.