(3β)-3-[4-(2-phenylmethoxycarbonyl)-3,3-dimethyl-1-oxobutoxy]lup-20(29)-en-28-al

Base Information

Chemical Name:(3β)-3-[4-(2-phenylmethoxycarbonyl)-3,3-dimethyl-1-oxobutoxy]lup-20(29)-en-28-al
CAS No.:1025069-19-5
Molecular Formula:C₄₄H₆₄O₅
Molecular Weight:672.989
Hs Code.:

Synonyms:(3β)-3-[4-(2-phenylmethoxycarbonyl)-3,3-dimethyl-1-oxobutoxy]lup-20(29)-en-28-al

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Chemical Property of (3β)-3-[4-(2-phenylmethoxycarbonyl)-3,3-dimethyl-1-oxobutoxy]lup-20(29)-en-28-al

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Technology Process of (3β)-3-[4-(2-phenylmethoxycarbonyl)-3,3-dimethyl-1-oxobutoxy]lup-20(29)-en-28-al

There total 9 articles about (3β)-3-[4-(2-phenylmethoxycarbonyl)-3,3-dimethyl-1-oxobutoxy]lup-20(29)-en-28-al 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: 95.0%

: 13159-28-9,92594-07-5
betulinic aldehyde

: 90393-31-0
3,3-dimethylqlutaric acid monobenzyl ester

: 1025069-19-5
(3β)-3-[4-(2-phenylmethoxycarbonyl)-3,3-dimethyl-1-oxobutoxy]lup-20(29)-en-28-al

Guidance literature:: With dmap; N-ethyl-N,N-diisopropylamine; 2,6-Dichlorobenzoyl chloride; In dichloromethane; at 5 - 20 ℃; for 16h; Inert atmosphere;

Reference yield:

: 10376-50-8,38736-81-1
3-O-acetylbetulinic acid

: 1025069-19-5
(3β)-3-[4-(2-phenylmethoxycarbonyl)-3,3-dimethyl-1-oxobutoxy]lup-20(29)-en-28-al

Guidance literature:: Multi-step reaction with 4 steps

1.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 6 h / 0 - 20 °C

2.1: N-ethyl-N,N-diisopropylamine / dichloromethane / 0 °C

2.2: 72 h / 20 °C

3.1: lithium aluminium tetrahydride / tetrahydrofuran / 72 h / -10 - 20 °C

3.2: 0 °C

4.1: dmap; N-ethyl-N,N-diisopropylamine; 2,6-Dichlorobenzoyl chloride / dichloromethane / 16 h / 5 - 20 °C

With dmap; lithium aluminium tetrahydride; oxalyl dichloride; N-ethyl-N,N-diisopropylamine; 2,6-Dichlorobenzoyl chloride; N,N-dimethyl-formamide; In tetrahydrofuran; dichloromethane;

Reference yield:

: 1025068-55-6
(3β)-3-acetyloxy-N-methoxy-N-methyl-lup-20(29)-en-28-amide

: 1025069-19-5
(3β)-3-[4-(2-phenylmethoxycarbonyl)-3,3-dimethyl-1-oxobutoxy]lup-20(29)-en-28-al

Guidance literature:: Multi-step reaction with 2 steps

1.1: lithium aluminium tetrahydride / tetrahydrofuran / 72 h / -10 - 20 °C

1.2: 0 °C

2.1: dmap; N-ethyl-N,N-diisopropylamine; 2,6-Dichlorobenzoyl chloride / dichloromethane / 16 h / 5 - 20 °C

With dmap; lithium aluminium tetrahydride; N-ethyl-N,N-diisopropylamine; 2,6-Dichlorobenzoyl chloride; In tetrahydrofuran; dichloromethane;