Synthesis, functionalization, and isolation of planar-chiral pillar[5]arenes with bulky substituents using a chiral derivatization agent was written by Al-Azemi, Talal F.;Vinodh, Mickey;Alipour, Fatemeh H.;Mohamod, Abdirahman A.. And the article was included in RSC Advances in 2019.Recommanded Product: 4-Benzyloxyphenol The following contents are mentioned in the article:
Bulky perneopentyloxy-pillar[5]arene (Pillar-1) I was synthesized and its conformational mobility was investigated using variable-temperature 1H NMR spectroscopy. The host-guest interactions between Pillar-1 I and n-octyltrimethylammonium hexafluorophosphate (OMA) were investigated, and the formation of a 1 : 1 complex was revealed via1H NMR. Planar-chiral isomers R/S II were synthesized via the reaction of a hydroxy-functionalized pillar[5]arene with chiral derivatization agent (2S)-3,3,3-trifluoro-2-methoxy-2-phenylpropanoyl chloride. The (Sp, R)-and (Rp, R)-forms of the pillar[5]arene diastereomers R/S II were isolated by HPLC, and their structures were analyzed by 19F NMR. HPLC measurements indicated that racemization did not take place at 40 °C for 72 h. This study involved multiple reactions and reactants, such as 4-Benzyloxyphenol (cas: 103-16-2Recommanded Product: 4-Benzyloxyphenol).
4-Benzyloxyphenol (cas: 103-16-2) belongs to ethers. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.Recommanded Product: 4-Benzyloxyphenol
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem