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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 460435Generated: October 29, 2026

Dimethylformamide dimethyl acetal → ethyl (Z)-3-(dimethylamino)-2-[4-[(E)-dimethylaminomethylideneamino]-2-methylsulfanyl-1,3-thiazole-5-carbonyl]prop-2-enoate

https://huagongshe.com/reaction/460435

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamide dimethyl acetalHCID 78373—
ReactantEthyl 3-(4-amino-2-methylthiothiazol-5-yl)-3-oxopropanoateHCID 2807782—
SolventTolueneHCID 1140—
Productethyl (Z)-3-(dimethylamino)-2-[4-[(E)-dimethylaminomethylideneamino]-2-methylsulfanyl-1,3-thiazole-5-carbonyl]prop-2-enoateHCID 13297627—

Reaction Steps

A mixture of EXAMPLE 1A (8.8 g) and N,N-dimethyl-formamide dimethyl acetal (15.1 g) in toluene (170 mL) at 110° C. was stirred for 3 hours, concentrated to half volume, cooled, and filtered. 1H NMR (300 MHz, CDCl3) δ 8.40 (s, 1H), 7.42 (s, 1H), 3.99 (q, 2H), 3.05 (d, 6H), 2.92 (b, 6H), 2.65 (s, 3H), 1.04 (t, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07196200B2
Source datasetuspto-grants-2007_03
ORD IDord-8639ce4003fb4f1c90294bd867f70cfc
Source noteuspto-grants-2007_03