(2S)-N-(2,3,4,6-tetra-O-pivaloyl-β-D-galactopyranosyl)-2-(4-chlorophenyl)-5,6-didehydro-piperidin-4-one

Base Information

• Chemical Name: (2S)-N-(2,3,4,6-tetra-O-pivaloyl-β-D-galactopyranosyl)-2-(4-chlorophenyl)-5,6-didehydro-piperidin-4-one
• CAS No.: 848978-55-2
• Molecular Formula: C₃₇H₅₂ClNO₁₀
• Molecular Weight: 706.274
• Mol file: 848978-55-2.mol

Synonyms:(2S)-N-(2,3,4,6-tetra-O-pivaloyl-β-D-galactopyranosyl)-2-(4-chlorophenyl)-5,6-didehydro-piperidin-4-one

Chemical Property of (2S)-N-(2,3,4,6-tetra-O-pivaloyl-β-D-galactopyranosyl)-2-(4-chlorophenyl)-5,6-didehydro-piperidin-4-one

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (2S)-N-(2,3,4,6-tetra-O-pivaloyl-β-D-galactopyranosyl)-2-(4-chlorophenyl)-5,6-didehydro-piperidin-4-one

There total 3 articles about (2S)-N-(2,3,4,6-tetra-O-pivaloyl-β-D-galactopyranosyl)-2-(4-chlorophenyl)-5,6-didehydro-piperidin-4-one which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 88.0%

danishefsky's diene (54125-02-9) + C33H48ClNO9 (120255-31-4) → (2S)-N-(2,3,4,6-tetra-O-pivaloyl-β-D-galactopyranosyl)-2-(4-chlorophenyl)-5,6-didehydro-piperidin-4-one (848978-55-2)

Guidance literature:

C₃₃H₄₈ClNO₉; With zinc(II) chloride; In tetrahydrofuran; at -78 ℃; for 0.25h; Inert atmosphere;

danishefsky's diene; In tetrahydrofuran; at -78 - -20 ℃; optical yield given as %de; diastereoselective reaction; Inert atmosphere;

DOI:10.1515/znb-2009-11-1251

Reference yield:

4-chlorobenzaldehyde (104-88-1) → (2S)-N-(2,3,4,6-tetra-O-pivaloyl-β-D-galactopyranosyl)-2-(4-chlorophenyl)-5,6-didehydro-piperidin-4-one (848978-55-2)

Guidance literature:

Multi-step reaction with 2 steps

1: 89 percent / ZnCl₂ / tetrahydrofuran; CH₂Cl₂ / -78 - -20 °C

With zinc(II) chloride; In tetrahydrofuran; dichloromethane;

DOI:10.1016/j.tetasy.2004.11.074

Reference yield:

tetra-O-pivaloyl-β-D-galactopyranosylamine (108342-87-6) → (2S)-N-(2,3,4,6-tetra-O-pivaloyl-β-D-galactopyranosyl)-2-(4-chlorophenyl)-5,6-didehydro-piperidin-4-one (848978-55-2)

Guidance literature:

Multi-step reaction with 2 steps

1: 89 percent / ZnCl₂ / tetrahydrofuran; CH₂Cl₂ / -78 - -20 °C

With zinc(II) chloride; In tetrahydrofuran; dichloromethane;

DOI:10.1016/j.tetasy.2004.11.074

upstream raw materials:

4-chlorobenzaldehyde

tetra-O-pivaloyl-β-D-galactopyranosylamine

danishefsky's diene

C₃₃H₄₈ClNO₉

Downstream raw materials:

(2S)-N-(2,3,4,6-tetra-O-pivaloyl-β-D-galactopyranosyl)-2-(4-chlorophenyl)-4-(trifluoromethanesulfonyloxy)-4,5-didehydro-piperidine

(2S)-N-(2,3,4,6-tetra-O-pivaloyl-β-D-galactopyranosyl)-5-bromo-2-(4-chlorphenyl)-5,6-dehydro-piperidin-4-one