The research focuses on the synthesis and characterization of soluble molecular dimers of calcium oxide (CaO) and strontium oxide (SrO) stabilized by a Lewis acid, specifically the compounds [{L1Al(Me)(m-O)Ca(thf)}2] (7) and [{L1Al(Me)(m-O)Sr(thf)}2] (8). The reactants used in the experiments include [LAlMe(OH)] (1), [Ca{N(SiMe3)2}2(thf)2] (5), and [Sr{N(SiMe3)2}2(thf)2] (6), with [L1Al(Me)] acting as a Lewis acid and coordinating to the oxygen atoms in the final products. The synthesis involves deprotonation of a methyl group in the ligand backbone, leading to the formation of CaO and SrO cores. The compounds were characterized using NMR spectroscopy, EI mass spectrometry, elemental analysis, and X-ray structural analysis. Theoretical calculations using density functional theory were also performed to understand the electronic structure and bonding properties of the synthesized complexes.
The research focuses on the development of a method to prepare 2-hydroxyamino-2′-iodobiaryls through a Cu-catalyzed enantioselective ring-opening reaction of cyclic diaryliodonium salts with O-alkylhydroxylamines. The study highlights the use of 3,5-di(tert-butyl)phenyl bis(oxazoline) as the optimal ligand, which enabled the achievement of up to 99% enantiomeric excess (ee) values. Calcium oxide (CaO) was identified as a crucial base that significantly improved yields and inhibited side reactions. The research also explored the substrate scope, demonstrating that various substituents on the benzenesulfonamide moiety and different O-alkylhydroxylamines were compatible with the reaction, yielding products with high enantioselectivity. Additionally, the study showcased the utility of the synthesized products through further modifications, such as N?O bond cleavage and selective removal of protecting groups, highlighting the potential applications of these hydroxylamines in synthetic chemistry.
Here are some small packages of Calcium oxide price information you can contact us to purchase, if you need to purchase Calcium oxide in bulk, please send an inquiry message to get the latest prices and offers.
| Name | CAS | Size | Price(USD) |
| MACKLIN | 1305-78-8 | 10.00kg | 62.86 |
| MACKLIN | 1305-78-8 | 500.00g | 5.71 |
| MACKLIN | 1305-78-8 | 10.00kg | 54.0 |
| MACKLIN | 1305-78-8 | 100.00g | 3.71 |
| MACKLIN | 1305-78-8 | 2.50kg | 17.71 |
| MACKLIN | 1305-78-8 | 25.00kg | 218.57 |
| MACKLIN | 1305-78-8 | 500.00g | 7.86 |
| MACKLIN | 1305-78-8 | 5.00g | 22.57 |
| MACKLIN | 1305-78-8 | 6000.00g | 66.57 |
| MACKLIN | 1305-78-8 | 6000.00g | 63.14 |
| Acmec | 1305-78-8 | 1.00kg | 9.71 |
| RHAWN | 1305-78-8 | 500.00g | 5.71 |
| RHAWN | 1305-78-8 | 5.00kg | 50.43 |
| RHAWN | 1305-78-8 | 500.00g | 5.57 |
| RHAWN | 1305-78-8 | 500.00g | 5.14 |
| ALADDIN | 1305-78-8 | 500.00g | 571.29 |
| ALADDIN | 1305-78-8 | 25.00g | 257.0 |
| ALADDIN | 1305-78-8 | 100.00g | 176.43 |
| ALADDIN | 1305-78-8 | 25.00kg | 147.0 |
| ALADDIN | 1305-78-8 | 25.00g | 58.71 |
| ALADDIN | 1305-78-8 | 10.00g | 29.29 |
| ALADDIN | 1305-78-8 | 2.50kg | 32.14 |
| Boer | 1305-78-8 | 2.50kg | 19.57 |
| Boer | 1305-78-8 | 500.00g | 5.71 |
| Boer | 1305-78-8 | 10.00kg | 58.29 |
| Boer | 1305-78-8 | 500.00g | 5.14 |
| Boer | 1305-78-8 | 100.00g | 3.57 |
| Boer | 1305-78-8 | 2.50kg | 17.0 |
| Boer | 1305-78-8 | 10.00kg | 51.86 |
| Boer | 1305-78-8 | 1.00kg | 12.0 |
| Boer | 1305-78-8 | 5.00kg | 50.43 |
| Boer | 1305-78-8 | 500.00g | 6.29 |
| Psaitong | 1305-78-8 | 2.00g | 64.29 |
| Psaitong | 1305-78-8 | 10.00g | 255.71 |
| Psaitong | 1305-78-8 | 100.00g | 181.14 |
| Psaitong | 1305-78-8 | 50.00g | 109.71 |
| Psaitong | 1305-78-8 | 5.00g | 84.29 |
| Psaitong | 1305-78-8 | 500.00g | 4.0 |
| Psaitong | 1305-78-8 | 10.00g | 25.71 |
