𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A Facile Synthesis of Substituted 1,4-Benzothiazepin-5(4H)-ones and Pyrido[3,2-f][1,4]thiazepin-5(4H)-ones − Crystal and Molecular Structure of 2-Ethylthio-4-methyl-5(4H)-oxopyrido[3,2-f][1,4]thiazepine-3-carbonitrile

✍ Scribed by Wolfgang Dölling; Matthias Biedermann; Helmut Hartung


Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
455 KB
Volume
1998
Category
Article
ISSN
1434-193X

No coin nor oath required. For personal study only.

✦ Synopsis


5(4H)-ones / 2-Chloro-N-cyanomethyl-N-methylnicotinamide / Aromatic nucleophilic substitution A new synthesis of pyrido[3,2-f][1,4]thiazepine derivatives 3 starting with 2-chloronicotinic acid (1), methylaminoacetonitrile hydrochloride and carbon disulfide is described. As proved by a crystal structure determination, a boat conformation with approximated mirror symmetry can be assigned to the 1,4-thiazepine ring in 3b. 2-Chloro-N-cyanomethyl-Nmethyl-5-nitrobenzamide (5) reacts with carbon disulfide in


📜 SIMILAR VOLUMES


Syntheses and structures of new substitu
✍ Guofeng Jia; Zhengming Li 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 166 KB

The cyclization of 4-aryl-1-arylsulfonylthiosemicarbazides 3, which were prepared by treatment of arylsulfonyl chlorides 1 with 4-aryl-3-thiosemicarbazides 2, with chloroacetyl chloride, provided the corresponding 2-arylamino-4-arylsulfonyl-4H-1,3,4-thiadiazin-5(6H)-ones 4 in good yields. The struct

1H and 13C NMR spectroscopy of 6-aryl-su
✍ Heng-Shan Dong; Bin Quan; Kun Wei; Qing-Lian Wang; Zi-Yi Zhang 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 93 KB 👁 1 views

Novel 6-aryl-3-[5-methyl-1-(4-methylphenyl)-1,2,3-triazol-4-yl]-s-triazolo[3,4-b]-1,3,4-thiadiazoles were synthesized by the condensation of 3-[5-methyl-1-(4-methylphenyl)-1,2,3-triazol-4-yl]-4amino-5-mercapto-s-triazole with various aromatic carboxylic acids in the presence of phosphorus oxychlorid