[5-methoxy-4-(methoxymethoxy)-7-methyl-1-naphthalenyl]boronic acid | 160538-98-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 英文名称: [5-methoxy-4-(methoxymethoxy)-7-methyl-1-naphthalenyl]boronic acid
• 英文别名: [5-Methoxy-4-(methoxymethoxy)-7-methylnaphthalen-1-yl]boronic acid
• CAS: 160538-98-7
• 化学式: C₁₄H₁₇BO₅
• 分子量: 276.097
• InChiKey: ZJTYVMGXYDWJDT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.82
• 重原子数：
  20
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  68.2
• 氢给体数：
  2
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  [5-methoxy-4-(methoxymethoxy)-7-methyl-1-naphthalenyl]boronic acid 在 四(三苯基膦)钯 盐酸 、 碳酸氢钠 作用下， 以 甲醇 、 二氯甲烷 、 水 、 甲苯 为溶剂， 反应 36.0h， 生成 4-[(R(a),1R,3R)-2-phenylmethyl-6,8-bis-phenylmethoxy-1,3-dimethyl-1,2,3,4-tetrahydroisoquinolin-5-yl]-8-methoxy-6-methylnaphthalen-1-ol
  参考文献：
  名称：

  Total Synthesis of Michellamines A−C, Korupensamines A−D, and Ancistrobrevine B

  摘要：

  Efficient syntheses of the title compounds have been developed. Several strategies for preparation of each of the naphthalene and tetrahydroisoquinoline (THIQ) portions were developed. Initial attempts to use benzyne plus furan cycloaddition reactions were thwarted by the unfavorable sense of the regiochemical outcome. An interesting annulation reaction of benzynes derived from 2,4-dibromophenol derivatives formed the core of the shortest naphthalene synthesis. An alternative annulation initiated by the addition of a benzylic sulfone anion to methyl crotonate led to an efficient naphthol synthesis amenable to large scale. The THIQ synthesis of Bringmann was used initially and subsequently complemented by a route whose key step involved the opening of N-tosyl-2-methylethyleneimine by a 3,5-dimethoxyphenylcuprate reagent. The results from a variety of aryl cross-coupling reactions are described. Suzuki coupling of the boronic acid derived from the naphthalene moiety with a THIQ-iodide was the most generally effective method for forming the hindered biaryl bond. The korupensamines and ancistrobrevine B were then revealed by deprotection. The oxidative coupling of several 4-aryl-1-naphthols to indigoids (cross ring naphthoquinones) with silver oxide effected the critical dimerization reaction needed to establish the michellamine skeleton. For the perbenzylated precursor, hydrogen over palladium on carbon both reductively bleached the indigoid and hydrogenolyzed the benzyl ethers and amines to release the free michellamines. The synthesis of several michellamine analogues, including ent-michellamines, is outlined. Results of anti-HIV assays are presented.

  DOI：

  10.1021/jo9908187
• 作为产物：
  描述：

  5-bromo-8-(methoxymethoxy)-3-methyl-1-naphthalenol 在 sodium hydroxide 、 正丁基锂 、 四丁基溴化铵 作用下， 以 四氢呋喃 、 正己烷 、 二氯甲烷 、 水 为溶剂， 反应 21.0h， 生成 [5-methoxy-4-(methoxymethoxy)-7-methyl-1-naphthalenyl]boronic acid
  参考文献：
  名称：

  Total Synthesis of Michellamines A−C, Korupensamines A−D, and Ancistrobrevine B

  摘要：

  Efficient syntheses of the title compounds have been developed. Several strategies for preparation of each of the naphthalene and tetrahydroisoquinoline (THIQ) portions were developed. Initial attempts to use benzyne plus furan cycloaddition reactions were thwarted by the unfavorable sense of the regiochemical outcome. An interesting annulation reaction of benzynes derived from 2,4-dibromophenol derivatives formed the core of the shortest naphthalene synthesis. An alternative annulation initiated by the addition of a benzylic sulfone anion to methyl crotonate led to an efficient naphthol synthesis amenable to large scale. The THIQ synthesis of Bringmann was used initially and subsequently complemented by a route whose key step involved the opening of N-tosyl-2-methylethyleneimine by a 3,5-dimethoxyphenylcuprate reagent. The results from a variety of aryl cross-coupling reactions are described. Suzuki coupling of the boronic acid derived from the naphthalene moiety with a THIQ-iodide was the most generally effective method for forming the hindered biaryl bond. The korupensamines and ancistrobrevine B were then revealed by deprotection. The oxidative coupling of several 4-aryl-1-naphthols to indigoids (cross ring naphthoquinones) with silver oxide effected the critical dimerization reaction needed to establish the michellamine skeleton. For the perbenzylated precursor, hydrogen over palladium on carbon both reductively bleached the indigoid and hydrogenolyzed the benzyl ethers and amines to release the free michellamines. The synthesis of several michellamine analogues, including ent-michellamines, is outlined. Results of anti-HIV assays are presented.

  DOI：

  10.1021/jo9908187

文献信息

• Total synthesis of (ent)-korupensamine D
  作者：Thomas R. Hoye、Minzhang Chen

  DOI：10.1016/0040-4039(96)00524-2

  日期：1996.4

  enantiomer of the natural product, korupensamine D (16R), is described. The key steps include a highly efficient preparation of the enantiomerically pure primary amine 4 via the ring opening of aziridine 2 with an arylcuprate reagent and the development of a one-pot selective functionalization of a hindered secondary amine in the presence of phenolic hydroxyl groups (i.e., 8 to 9).

  描述了天然产物对映异构体D（16R）的对映异构体的第一次全合成。关键步骤包括通过氮丙啶2与芳基铜酸酯试剂的开环高效制备对映体纯的伯胺4以及在酚羟基存在的情况下开发受阻仲胺的一锅选择性功能化，8至9）。
• Total synthesis of Michellamines A-C: Important anti-HIV agents
  作者：Thomas R. Hoye、Minzhang Chen、Liang Mi、Owen P. Priest

  DOI：10.1016/s0040-4039(00)78487-5

  日期：1994.11

  Michellamines A-C have been prepared by total synthesis in 7 and 16 linear steps from known and commercial materials, respectively. Key steps include i) palladium(0)-mediated biaryl coupling, ii) silver oxide promoted oxidative 1-naphthol coupling to an atropisomeric mixture of cross-ring quinones (indigoids), and iii) simultaneous per-debenzylation/reductive bleaching to the central 2,2'-binaphthol.
• Studies of Palladium-Catalyzed Cross-Coupling Reactions for Preparation of Highly Hindered Biaryls Relevant to the Korupensamine/Michellamine Problem
  作者：Thomas R. Hoye、Minzhang Chen

  DOI：10.1021/jo960882d

  日期：1996.1.1