(+)-3--1,2-benzisothiazole 1,1-dioxide

Base Information

Chemical Name:(+)-3--1,2-benzisothiazole 1,1-dioxide
CAS No.:131759-32-5
Molecular Formula:C₁₈H₁₉NO₃S
Molecular Weight:329.42
Hs Code.:

(+)-3-<o-(S)-(2-methylbutoxy)phenyl>-1,2-benzisothiazole 1,1-dioxide

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Chemical Property of (+)-3--1,2-benzisothiazole 1,1-dioxide

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Technology Process of (+)-3--1,2-benzisothiazole 1,1-dioxide

There total 3 articles about (+)-3--1,2-benzisothiazole 1,1-dioxide 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:

: 1565-80-6
(2S)-2-methyl-1-butanol

: 131759-32-5
(+)-3--1,2-benzisothiazole 1,1-dioxide

Guidance literature:: Multi-step reaction with 3 steps

1: 60 percent / triphenyl phosphite, iodine / CH₂Cl₂ / 1.) 0 degC, 2 h 2.) rt, 1 h

2: 1.) NaOH / 1.) aq. EtOH, reflux, 20 min 2.) aq. EtOH, reflux, 10 h

3: 1.) t-BuLi / 1.) n-hexane, a) -78 degC, 1/2 h b) -78 degC -> rt, 10-20 min 2.) THF, -78 degC, 4 h

With triphenyl phosphite; sodium hydroxide; iodine; tert.-butyl lithium; In dichloromethane;
DOI:10.1021/jo00002a056

Reference yield:

: 29394-58-9
(S)-1-iodo-2-methyl-butane

: 131759-32-5
(+)-3--1,2-benzisothiazole 1,1-dioxide

Guidance literature:: Multi-step reaction with 2 steps

1: 1.) NaOH / 1.) aq. EtOH, reflux, 20 min 2.) aq. EtOH, reflux, 10 h

2: 1.) t-BuLi / 1.) n-hexane, a) -78 degC, 1/2 h b) -78 degC -> rt, 10-20 min 2.) THF, -78 degC, 4 h

With sodium hydroxide; tert.-butyl lithium;
DOI:10.1021/jo00002a056

Reference yield:

: 18712-15-7
3-ethoxy-benzo[d]isothiazole 1,1-dioxide

: 131759-35-8
o-(S)-(2-methylbutoxy)phenyl bromide

: 131759-32-5
(+)-3--1,2-benzisothiazole 1,1-dioxide

Guidance literature:: With tert.-butyl lithium; Yield given. Multistep reaction; 1.) n-hexane, a) -78 degC, 1/2 h b) -78 degC -> rt, 10-20 min 2.) THF, -78 degC, 4 h;
DOI:10.1021/jo00002a056