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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 358216Generated: October 30, 2026

Methyl isothiocyanate → HCID 178486106, compound

https://huagongshe.com/reaction/358216

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl isothiocyanateHCID 11167—
Reactant1-(4-Chlorophenyl)-4,5-dihydro-1H-pyrazol-3-amineHCID 12551450—
ProductHCID 178486106HCID 178486106—

Reaction Steps

3-Amino-1-(4-chlorophenyl)-2-pyrazoline (1.5 g) (prepared in Reference Example 6 of our European patent specification No. 22-578) and methylisothiocyanate (1.02 g) were heated together at 100° for two hours. The crude product was ground under methanol, collected by filtration, and recrystallised from acetone to yield 3-(3-methylthioureido)-1-(4-chlorophenyl)-2-pyrazoline, m.p. 237°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04465685
Source datasetuspto-grants-1984_08
ORD IDord-f7322818cc2c48fba8a956de47e50faf
Source noteuspto-grants-1984_08