In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 3973-18-0, name is Propynol ethoxylate, the common compound, a new synthetic route is introduced below. SDS of cas: 3973-18-0
[Synthesis 8]Production of 2,4,6-triisopropyl-N-((lR,2R)-2-(2-((4-methylcyclohexa-l,4-dienyl)methoxy)etheyl amino)- l,2-diphenylethy)benzenesulfonamide In 25 ml of toluene, 6.03 g (18.82 mmol) of the above-described tosylates obtained in Synthesis 7 were dissolved. To this solution, 2.43 g (18.82 mmol) of DIPEA and 9.00 g (18.80 mmol) of (R,R)-TIPPsDPEN were added, foUowed by stirring at 135C for 13 hours. After that, the solvent was removed by distillation under reduced pressure. The obtained residue was purified by silica gel column chromatography (toluene/ethyl acetate=20/l>15/l). Thus, 10.53 g of the title compound was obtained as a colorless oily substance. Yield: 89.0%. ?-NMR (CDCI3, 300 MHz) 5:1.06 (d, J=6.9 Hz, 3H), 1.21 (d, J=6.9 Hz, 3H), 1.87 (brs, 1H), 1.68 (s, 3H), 2.60 (brs, 4H), 2.71-2.48 (m, 2H), 3.52-3.34 (m, 2H), 3.55 (d, J=8.9 Hz, 1H), 3.77 (s, 2H), 3.95 (septet, J=6.7 Hz, 3H), 4.40 (d, J=8.9 Hz, 1H), 5.44 (m, 1H), 5.64 (m, 1H),6.52 (brs, 1H), 6.74-7.28 (m, 12H);HRMS(ESI):[M+H]+ calcd for C39H53N2O3S: 629.3771; found: 629.3771
The synthetic route of 3973-18-0 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; TAKASAGO INTERNATIONAL CORPORATION; TANAKA, Shigeru; TOUGE, Taichiro; NARA, Hideki; ISHIDA, Kenya; WO2013/65867; (2013); A1;,
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