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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1657700Generated: November 1, 2026

4-Methylthiobutyryl chloride → 5-(methylthio)-1-nitro-1-(tetrahydro-2H-1,3-thiazin-2-ylidene)-2-pentanone

https://huagongshe.com/reaction/1657700

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Methylthiobutyryl chlorideHCID 19806853—
ReactantMethylthioacetyl chlorideHCID 21249692—
ReactantButanecarbothioyl chlorideHCID 22343826—
Reactant3-(methylthio)-1-nitro-1-(tetrahydro-2H-1,3-thiazin-2-ylidene)-2-propanoneHCID 73793680—
Product5-(methylthio)-1-nitro-1-(tetrahydro-2H-1,3-thiazin-2-ylidene)-2-pentanoneHCID 73793681—
Product4-(methylthio)-1-nitro-1-(tetrahydro-2H-1,3-thiazin-2-ylidene)-2-butanoneHCID 73793682—

Reaction Steps

In a similar manner, 3-(methylthio)-1-nitro-1-(tetrahydro-2H-1,3-thiazin-2-ylidene)-2-propanone (18) was prepared as a yellow solid, m.p.: 117.5°-119°, from methylthioacetyl chloride; 5-(methylthio)-1-nitro-1-(tetrahydro-2H-1,3-thiazin-2-ylidene)-2-pentanone (19) was prepared as a pale yellow solid, m.p.: 49°-49.5°, from 4-methylthiobutyryl chloride; 4-(methylthio)-1-nitro-1-(tetrahydro-2H-1,3-thiazin-2-ylidene)-2-butanone (20) was prepared as a yellow solid, m.p.: 42°-43° from 3-methylthiopropionyl chloride.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03962225
Source datasetuspto-grants-1976_06
ORD IDord-ddbb82babc394e79ab56a55855082fee
Source noteuspto-grants-1976_06