With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.24621-61-2,(S)-Butane-1,3-diol,as a common compound, the synthetic route is as follows.
p-Toluenesulfonyl chloride (381 mg, 1 .68 mmol) was dissolved in anhydrous DCM (10 mL) at RT under N2. (s)-(+)-1 ,3-butandiol (300 muIota_, 3.33 mmol) was added followed by NEt3 (450 muIota_, 3.33 mmol) and the solution stirred for 18 h. The solution was partitioned with H2O (15 mL) and extracted with DCM (3 x 10 mL), Combined organic fractions were dried by phase separator and the mixture loaded onto silica for purification by flash chromatography. The desired compound A32 was isolated as a clear oil (144 mg, 29%); -NMR (400 MHz, DMSO-c/6): delta 7.78 (d, J = 8.0 Hz, 2H), 7.48 (d, J = 8.0 Hz, 2H), 4.56 (d, J = 5.0 Hz, 1 H), 4.12-4.00 (m, 2H), 3.65-3.57 (m, 1 H). 2.43 (s, 3H), 1 .69-1 .54 (m, 2H), 1 .00 (d, J = 6.0 Hz, 3H).
As the paragraph descriping shows that 24621-61-2 is playing an increasingly important role.
Reference£º
Patent; IMPERIAL INNOVATIONS LIMITED; SCHNEIDER, Michael; NEWTON, Gary; CHAPMAN, Katie; PERRIOR, Trevor; JARVIS, Ashley; LOW, Caroline; AQIL, Rehan; FISHER, Martin; BAYFORD, Melanie; CHAPMAN, Nicholas; MARTIN, Nicholas; REISINGER, Tifelle; NEGOITA-GIRAS, Gabriel; (260 pag.)WO2019/73253; (2019); A1;,
Synthesis and Crystal Structure of a Chiral?C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis
Chiral lanthanide(III) complexes of sulphur¨Cnitrogen¨Coxygen ligand derived from aminothiourea and sodium?D-camphor-¦Â-sulfonate