- Exo-functionalized shape-persistent [2+3] cage compounds: Influence of molecular rigidity on formation and permanent porosity
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Exo-functionalized [2+3] cage compounds were synthesized by using two different bissalicylaldehydes as molecular precursors in the reaction with triptycene triamine to study the influence of the rigidity of the molecular structure of [2+3] cages on their
- Schneider, Markus W.,Oppel, Iris M.,Mastalerz, Michael
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- The double oxa-Michael-aldol condensation: Straightforward access to dimeric tetrahydroxanthenones
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Symmetrical dimeric tetrahydroxanthenones can be obtained in a single step starting from dimeric salicylic aldehydes and cyclohexenones employing a double oxa-Michael-aldol condensation. Georg Thieme Verlag Stuttgart.
- Nising, Carl Friedrich,Friedrich, Anne,Br?se, Stefan
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- Syntheses of 2,2′-bibenzo[7]annulenes by double Au-catalyzed sequential activation of propargylic carboxylates
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We previously reported a novel Au-catalyzed sequential activation of two different propargyl carboxylates to 6-methylene-6H-benzo[7]annulene-5,8-diyl dicarboxylates. This reaction has been extended to syntheses of highly functionalized 2,2′-bibenzo[7]annulenes with four biphenyls bearing two sets of different propargyl carboxylates.
- Lee, Young Ju,Heo, Hoon Gu,Oh, Chang Ho
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- Rapid synthesis of novel and known coumarin-3-carboxylic acids using stannous chloride dihydrate under solvent-free conditions
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Various coumarin-3-carboxylic acid (=2-oxo-2H-1-benzopyran-3-carboxylic acid; CcaH) derivatives have been synthesized in good yields using catalytic amounts of SnCl2·2 H2O under solvent-free conditions. This inexpensive, nontoxic, and readily available catalytic system (10 mol-%) efficiently catalyzes the Knoevenagel condensation and intramolecular cyclization of various 2-hydroxybenzaldehydes or acetophenones with Meldrum's acid. High product yields, use of inexpensive and safe catalyst, and solvent-free conditions display both economic and environmental advantages. Copyright
- Karami, Bahador,Farahi, Mahnaz,Khodabakhshi, Saeed
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- COLORANT COMPOSITION, PHOTOSENSITIVE RESIN COMPOSITION, PHOTO RESIST, COLOR FILTER, AND DISPLAY DEVICE
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The color material composition of claim 1, wherein the compound is represented by the following formula. A photosensitive material, a color filter and a display device are provided. (by machine translation)
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Paragraph 0220; 0221; 0225; 0226
(2020/08/14)
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- COLORANT COMPOSITION, PHOTOSENSITIVE RESIN COMPOSITION, PHOTO RESIST, COLOR FILTER, AND DISPLAY DEVICE
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The present invention relates to a color material composition comprising a polymer including a unit represented by chemical formula 1, to a photosensitive resin composition comprising the same, to a photosensitive material, to a color filter, and to a dis
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Paragraph 0198; 0199; 0203-0204
(2020/10/09)
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- The polymerizable liquid crystal compound, the polymerizable composition, polymer, a phase difference film and its manufacturing method, a laminate for transfer, optical member and method of manufacturing same, and display device
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A polymerizable liquid crystal compound which is represented by general formula (1). (In general formula (1), the symbols are as defined in the description.)
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Paragraph 0226; 0232
(2019/03/26)
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- Synthesis and characterization of linear and macrocyclic ligands with multiple hemisalen pockets
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Procedures for the convenient preparation of new ligands possessing multiple metal binding sites are presented. Among those, a Schiff base macrocycle exhibiting three outward hemisalen pockets was synthesized using a one-pot reduction/condensation reactio
- Guieu, Samuel
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p. 3177 - 3186
(2012/11/07)
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- Synthesis of tri-and disalicylaldehydes and their chiral schiff base compounds
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A suitable procedure for convenient preparation of 1,3,5-tris(4-hydroxy-5- formylphenyl)benzene (6) was exploited via 5-bromosalicylaldehyde as starting reactant. Among the obtained products, compound 6, 4-methoxy-3- formylphenylboronic acid (9), 1,3,5-tris(4-methoxy-5-formylphenyl)benzene (10), and 4-methoxy-4'-hydroxyl-3,3'-diformyl-1,1'-diphenyl (11) had not been reported previously. Two new chiral Schiff base ligands, L1 and L2, were obtained from the tri-or disalicylaldehydes.
- Liu, Hai-Bin,Wang, Mei,Wang, Ying,Wang, Lin,Sun, Li-Cheng
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experimental part
p. 1074 - 1081
(2010/05/18)
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- Synthesis of spiropyrans and merocyanine dyes based on 1-benzothieno[3,2-b] pyrrole
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A convenient method was developed for the synthesis of photochromic spiropyrans and merocyanine dyes of the 1-benzothieno[3,2-b]pyrroline series based on the conventional condensation of the analog of Fischer's salt, viz., 1,2,3,3-tetramethyl-3H-[1]benzot
- Shimkin,Shirinian,Mailyan,Krayushkin
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scheme or table
p. 380 - 386
(2010/07/09)
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- Homodinuclear ruthenium catalysts for dimer ring-closing metathesis
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(Chemical Equation Presented) Two ring or not to ring: Novel diruthenium olefin metathesis catalysts show a tendency to avoid oligomerization and favor cyclic dimerization when the distances between the ruthenium centers and between the diene extremities match (see scheme).
- Tzur, Eyal,Ben-Asuly, Amos,Diesendruck, Charles E.,Goldberg, Israel,Lemcoff, N. Gabriel
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supporting information; experimental part
p. 6422 - 6425
(2009/03/11)
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- Homocoupling of aryl iodides and bromides using a palladium/indium bimetallic system
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Homocoupling of aryl iodides and bromides using catalytic amounts of palladium and stoichiometric amounts of indium proceeded smoothly to afford the corresponding biaryls in good to high yields. Copyright Taylor & Francis, Inc.
- Chang, Yu Mi,Lee, Seung Hwan,Cho, Min Young,Yoo, Byung Woo,Rhee, Hak June,Lee, Sang Ho,Yoon, Cheol Min
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p. 1851 - 1857
(2007/10/03)
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