2H-1,2lambda~6~,3-Benzoxathiazine-2,2-dione → 2,2-Dioxo-3,4-dihydro-1,2,3-benzoxathiazine

Reaction equation

[O:1]=[S:2]1(=[O:17])[N:7]=[CH:6][C:5]2[CH:8]=[C:9](C(C)(C)C)[CH:10]=[C:11](Cl)[C:4]=2[O:3]1.O=S1(=O)N=CC2C=CC=CC=2O1>>[O:17]=[S:2]1(=[O:1])[NH:7][CH2:6][C:5]2[CH:8]=[CH:9][CH:10]=[CH:11][C:4]=2[O:3]1

Participants

Reactant 2

HCID 127128052H-1,2lambda~6~,3-Benzoxathiazine-2,2-dione

HCID 233428892,2-Dioxo-6-(1,1-dimethylethyl)-8-chloro-1,2,3-benzoxathiazine

Product 1

HCID 233428822,2-Dioxo-3,4-dihydro-1,2,3-benzoxathiazine

Procedure

This compound is prepared by essentially the same method as described in Example 9 except that the 2,2-dioxo-6-(1,1-dimethylethyl)-8-chloro-1,2,3-benzoxathiazine is replaced by 2,2-dioxo-1,2,3-benzoxathiazine. The following reagents are employed:

Workup

customThis compound is prepared by essentially the same method

Sources & evidence

ORD record: ord-6c15c72ba51a48e7b28f41fc9405aa67
Source dataset: uspto-grants-1980_09
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US04221790

Reaction notes

Loading…