3,5-Di[3,5-di(4-vinylbenzyloxy)benzyloxy]benzyl alcohol | 312767-17-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 英文名称: 3,5-Di[3,5-di(4-vinylbenzyloxy)benzyloxy]benzyl alcohol
• 英文别名: 3,5-Di(3,5-di(4-vinylbenzyloxy)benzyloxy)benzylalcohol；[3,5-bis[[3,5-bis[(4-ethenylphenyl)methoxy]phenyl]methoxy]phenyl]methanol
• CAS: 312767-17-2
• 化学式: C₅₇H₅₂O₇
• 分子量: 849.036
• InChiKey: SPYQIYNQTXQYIF-UHFFFAOYSA-N

物化性质

• 沸点：
  973.0±60.0 °C(predicted)
• 密度：
  1.187±0.06 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  12.9
• 重原子数：
  64
• 可旋转键数：
  23
• 环数：
  7.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  75.6
• 氢给体数：
  1
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  3,5-Di[3,5-di(4-vinylbenzyloxy)benzyloxy]benzyl alcohol 在 四溴化碳 、 三苯基膦 作用下， 以 四氢呋喃 为溶剂， 反应 49.0h， 以63%的产率得到3,5-Di[3,5-di(4-vinylbenzyloxy)benzyloxy]benzyl bromide
  参考文献：
  名称：

  Immobilization of BINOL by Cross-Linking Copolymerization of Styryl Derivatives with Styrene, and Applications in Enantioselective Ti and Al Lewis Acid Mediated Additions of Et2Zn and Me3SiCN to Aldehydes and of Diphenyl Nitrone to Enol Ethers

  摘要：

  The chiral ligand 1,1'-bi-2-naphthol (BINOL) has been succesfully immobilized on polystyrene. Several dendritic and non-dendritic BINOL derivatives (3, and 13-17), bearing at least two polymerizable styryl groups, were prepared and fully characterized. Suspension copolymerization of the MOM- or TIPS-protected cross-linking BINOL ligands (MOM = methyloxymethyl, TIPS = triisopropylsilyl) with styrene, cleavage of the protecting-groups, and loading with a Lewis-acid afforded catalytically active polystyrene-supported BINOLates. The polymer-bound BINOLs p-3, and p-13-p-16 were tested in the Ti-BINOLate-mediated addition of Et2Zn to PhCHO. The enantioselectivities (up to 93%) and conversions obtained with the polymer-bound catalysts were in most cases identical (within experimental error) to those obtained with the unsubstituted 1,1'-bi-2-naphthol and with the non-polymerized BINOL cross-linkers under homogeneous conditions. Special focus was put on the reusability of the supported catalyst: the polymer-beads were used in up to 20 consecutive catalytic runs, with the best polymers showing no or only minor loss of selectivity. BINOL-polymers p-17, obtained by copolymerization of a 3,3'-distyryl-substituted BINOL 17a with styrene, were used in the BINOL AlMe-mediated cycloaddition of diphenyl nitrone with alkyl vinyl ethers. In all cases the exolendo selectivity (greater than or equal to 92:8) and the enantioselectivities with which the exo-cycloadducts were formed (greater than or equal to 95%) correspond to those observed in the homogeneous reactions. A dendritically cross-linked BINOL-polymer was also employed in the Ti-BINOLate-mediated cyanosilylation of pivalaldehyde. The enantiopurity of the cyanohydrine obtained in the first run was as high as in the homogeneous reaction (72%); surprisingly the catalytic performance of the supported catalyst increased steadily during the first catalytic cycles to reach 83%. Thus, cross-linking BINOLs can be succesfully incorporated into a polystyrene matrix (without racemization!) to give poly mer-bound BINOL ligands that give excellent performance over many catalytic cycles with catalytic activities comparable with those of soluble analogues.

  DOI：

  10.1002/1521-3765(20001016)6:20<3692::aid-chem3692>3.0.co;2-0
• 作为产物：
  描述：

  3,5-二羟基苯甲酸甲酯 在 lithium aluminium tetrahydride 、 18-冠醚-6 、 四溴化碳 、 potassium carbonate 、 三苯基膦 作用下， 以 四氢呋喃 、 丙酮 为溶剂， 反应 132.0h， 生成 3,5-Di[3,5-di(4-vinylbenzyloxy)benzyloxy]benzyl alcohol
  参考文献：
  名称：

  Immobilization of BINOL by Cross-Linking Copolymerization of Styryl Derivatives with Styrene, and Applications in Enantioselective Ti and Al Lewis Acid Mediated Additions of Et2Zn and Me3SiCN to Aldehydes and of Diphenyl Nitrone to Enol Ethers

  摘要：

  The chiral ligand 1,1'-bi-2-naphthol (BINOL) has been succesfully immobilized on polystyrene. Several dendritic and non-dendritic BINOL derivatives (3, and 13-17), bearing at least two polymerizable styryl groups, were prepared and fully characterized. Suspension copolymerization of the MOM- or TIPS-protected cross-linking BINOL ligands (MOM = methyloxymethyl, TIPS = triisopropylsilyl) with styrene, cleavage of the protecting-groups, and loading with a Lewis-acid afforded catalytically active polystyrene-supported BINOLates. The polymer-bound BINOLs p-3, and p-13-p-16 were tested in the Ti-BINOLate-mediated addition of Et2Zn to PhCHO. The enantioselectivities (up to 93%) and conversions obtained with the polymer-bound catalysts were in most cases identical (within experimental error) to those obtained with the unsubstituted 1,1'-bi-2-naphthol and with the non-polymerized BINOL cross-linkers under homogeneous conditions. Special focus was put on the reusability of the supported catalyst: the polymer-beads were used in up to 20 consecutive catalytic runs, with the best polymers showing no or only minor loss of selectivity. BINOL-polymers p-17, obtained by copolymerization of a 3,3'-distyryl-substituted BINOL 17a with styrene, were used in the BINOL AlMe-mediated cycloaddition of diphenyl nitrone with alkyl vinyl ethers. In all cases the exolendo selectivity (greater than or equal to 92:8) and the enantioselectivities with which the exo-cycloadducts were formed (greater than or equal to 95%) correspond to those observed in the homogeneous reactions. A dendritically cross-linked BINOL-polymer was also employed in the Ti-BINOLate-mediated cyanosilylation of pivalaldehyde. The enantiopurity of the cyanohydrine obtained in the first run was as high as in the homogeneous reaction (72%); surprisingly the catalytic performance of the supported catalyst increased steadily during the first catalytic cycles to reach 83%. Thus, cross-linking BINOLs can be succesfully incorporated into a polystyrene matrix (without racemization!) to give poly mer-bound BINOL ligands that give excellent performance over many catalytic cycles with catalytic activities comparable with those of soluble analogues.

  DOI：

  10.1002/1521-3765(20001016)6:20<3692::aid-chem3692>3.0.co;2-0

文献信息

• Taddol and titanium (IV) taddolate dendrimers
  申请人：Novartis AG

  公开号：US06211316B1

  公开（公告）日：2001-04-03

  TADDOL dendrimers are described. Their use as crosslinkers in polymerisation reactions and the use of Ti salts of polymer-bound TADDOL dendrimers as catalysts in enantioselective addition reactions is disclosed.

  本文介绍了TADDOL树枝状聚合物。它们作为聚合反应中的交联剂以及聚合物支持的TADDOL树枝状聚合物的Ti盐在对映选择性加成反应中作为催化剂的使用被揭示。
• TADDOL and titanium ( ) taddolate dendrimers and composition
  申请人：Novartis AG

  公开号：US06441112B1

  公开（公告）日：2002-08-27

  TADDOL dendrimers are described. Their use as crosslinkers in polymerisation reactions and the use of Ti salts of polymer-bound TADDOL dendrimers as catalysts in enantioselective addition reactions is disclosed.

  介绍了TADDOL树枝状聚合物。它们作为聚合反应中的交联剂以及聚合物- TADDOL树枝状聚合物的Ti盐作为手性选择性加成反应催化剂的用途被揭示。
• US6211316B1
  申请人：——

  公开号：US6211316B1

  公开（公告）日：2001-04-03
• US6441112B1
  申请人：——

  公开号：US6441112B1

  公开（公告）日：2002-08-27