Benzothiazole → Benzothiazole

Participants

Role	Name	HCID	Charge
Reactant	Benzothiazole	HCID 7222	—
Reactant	2-Hexenoic acid	HCID 14486	—
Reactant	2,3-Dihydro-3-propyl-1,5-benzothiazepin-4(5H)-one	HCID 14454110	—
Product	Benzothiazole	HCID 7222	—
Product	1-Cyclohexene-1-carboxylic acid	HCID 69470	—

Reaction Steps

In an analogous manner to the previous examples, 2,3-dihydro-3-propyl-1,5-benzothiazepin-4(5H)-one (melting point: 120°-122° C.) was obtained from benzothiazole and 2-hexenic acid, 2,3-dihydro-2,3-tetramethylene-1,5-benzothiazepin-4(5H)-one (melting point: 225°-227° C.) was obtained from benzothiazole and cyclohexene-1-carboxylic acid and 2,3-dihydro-7,8-dimethyl-1,5-benzothiazepin-(5H)one (melting point: 241°-244° C.) was obtained from 5,6-dimethylbenzothiazole and acrylic acid.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US04948886
Source dataset	uspto-grants-1990_08
ORD ID	ord-00fca1354b3f47d9832e7e7c0ee4c560
Source note	uspto-grants-1990_08