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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1723528Generated: November 1, 2026

Hydrochloric Acid → (E)-2-[2-(4-Pyrrolidinobutoxyphenyl)ethenyl]benzothiazole

https://huagongshe.com/reaction/1723528

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPyrrolidineHCID 31268—
ReactantHCID 20025798HCID 20025798—
Product(E)-2-[2-(4-Pyrrolidinobutoxyphenyl)ethenyl]benzothiazoleHCID 2002580633%

Reaction Steps

The title compound was prepared in accordance with Example 38 starting with (H) of Example 38 (3.0 g, 8.7 mmol) and using pyrrolidine in place of dipropylamine to produce 1.1 g (33% yield) of the title compound as the HCl salt, mp 220°-222° C. IR(KBr): 3410, 1600 cm-1. MS: 379(MH+). 1H NMR (CD3OD): δ 8.02-6.91 (m, 10H), 4.12 (t, J=5.2 Hz, 2H), 3.23 (m, 6H), 2.54 (m, 4H), 2.21 (m, 4H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04861897
Source datasetuspto-grants-1989_08
ORD IDord-f4147da308c24eea947ad7f5f89e5597
Source noteuspto-grants-1989_08