bis(dithiocarbonate)s from diethylene, triethylene, and tetraethylene glycols with dibromoalkanes or ethereal oxygen-containing diiodides under high-dilution conditions gave 1 : 1 reaction products, 14—25-membered macrocyclic bis(dithiocarbonic ester)s. From dimethyl esters of the bis(dithiocarbonic acid)s and diaminoalkanes or ethereal oxygen-containing diamines, macrocyclic bis(thiocarbamate)s were
Synthesis and physical chemical properties of 2-amino-4-(trifluoromethoxy)butanoic acid – a CF<sub>3</sub>O-containing analogue of natural lipophilic amino acids
作者:Ivan S. Kondratov、Ivan G. Logvinenko、Nataliya A. Tolmachova、Roman N. Morev、Maria A. Kliachyna、Florian Clausen、Constantin G. Daniliuc、Günter Haufe
DOI:10.1039/c6ob02436j
日期:——
2-Amino-2-(trifluoromethoxy)butanoic acid (O-trifluoromethyl homoserine) was synthesized as a racemate and in both enantiomeric forms. The measured pKa and log D values establish the compound as a promising analogue of natural aliphatic amino acids.
合成了外消旋体和两种对映体形式的2-氨基-2-(三氟甲氧基)丁酸(O-三氟甲基高丝氨酸)。测得的p K a和log D值确定该化合物为天然脂族氨基酸的有前途的类似物。