tert-butyl 2-(N-(3-bromo-5-cyanobenzyl)-2,2-dimethylchroman-6-sulfonamido)acetate

Base Information

• Chemical Name: tert-butyl 2-(N-(3-bromo-5-cyanobenzyl)-2,2-dimethylchroman-6-sulfonamido)acetate
• CAS No.: 1331750-43-6
• Molecular Formula: C₂₅H₂₉BrN₂O₅S
• Molecular Weight: 549.486
• Mol file: 1331750-43-6.mol

Synonyms:tert-butyl 2-(N-(3-bromo-5-cyanobenzyl)-2,2-dimethylchroman-6-sulfonamido)acetate

Chemical Property of tert-butyl 2-(N-(3-bromo-5-cyanobenzyl)-2,2-dimethylchroman-6-sulfonamido)acetate

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of tert-butyl 2-(N-(3-bromo-5-cyanobenzyl)-2,2-dimethylchroman-6-sulfonamido)acetate

There total 3 articles about tert-butyl 2-(N-(3-bromo-5-cyanobenzyl)-2,2-dimethylchroman-6-sulfonamido)acetate 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: 80.0%

tert-butyl 2-(2,2-dimethylchroman-6-sulfonamido)acetate (1331750-40-3) + α-Bromo-3-bromo-5-cyanotoluene (124289-24-3) → tert-butyl 2-(N-(3-bromo-5-cyanobenzyl)-2,2-dimethylchroman-6-sulfonamido)acetate (1331750-43-6)

Guidance literature:

With resin-supported 2-tert-butylimino-2-diethylamino-1,3-dimethylperhydro-1,3,2-diazaphosphorine; In acetonitrile; at 90 ℃; for 3h; Microwave irradiation;

Reference yield:

Glycine tert-butyl ester (6456-74-2) → tert-butyl 2-(N-(3-bromo-5-cyanobenzyl)-2,2-dimethylchroman-6-sulfonamido)acetate (1331750-43-6)

Guidance literature:

Multi-step reaction with 2 steps

1: N-ethyl-N,N-diisopropylamine / dmap / dichloromethane / -30 - 25 °C

2: resin-supported 2-tert-butylimino-2-diethylamino-1,3-dimethylperhydro-1,3,2-diazaphosphorine / acetonitrile / 3 h / 90 °C / Microwave irradiation

With N-ethyl-N,N-diisopropylamine; dmap; In dichloromethane; acetonitrile;

Reference yield:

2,2-dimethylchromane-6-sulfonyl chloride (131880-55-2) → tert-butyl 2-(N-(3-bromo-5-cyanobenzyl)-2,2-dimethylchroman-6-sulfonamido)acetate (1331750-43-6)

Guidance literature:

Multi-step reaction with 2 steps

1: N-ethyl-N,N-diisopropylamine / dmap / dichloromethane / -30 - 25 °C

2: resin-supported 2-tert-butylimino-2-diethylamino-1,3-dimethylperhydro-1,3,2-diazaphosphorine / acetonitrile / 3 h / 90 °C / Microwave irradiation

With N-ethyl-N,N-diisopropylamine; dmap; In dichloromethane; acetonitrile;

upstream raw materials:

Glycine tert-butyl ester

2,2-dimethylchromane-6-sulfonyl chloride

tert-butyl 2-(2,2-dimethylchroman-6-sulfonamido)acetate

α-Bromo-3-bromo-5-cyanotoluene

Refernces