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Synthetic Studies of Nitro‐Chlorotropones and Trihalotropones
Author(s) -
Hsiang ShiFen Lin,
Yang PawWang,
Pan ShiiJeou,
Chien ChingYing,
Chou Shine
Publication year - 1969
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.196900012
Subject(s) - chemistry , nitration , nitric acid , hydrogen bromide , yield (engineering) , nitro , acetic acid , hydrogen chloride , bromide , chloride , hydrogen , organic chemistry , medicinal chemistry , nuclear chemistry , bromine , materials science , alkyl , metallurgy
Nitration of 2‐chlorotropone with fuming nitric acid gave 2‐chloro‐ 4,7‐dinitrotropone in good yield. 2,4,7‐Trichlorotropone, a new compound, and 2,4,7‐tribromotropone have been derived successfully from 2‐chloro‐4,7‐dinitrotropone by heating with hydrogen chloride or hydrogen bromide in acetic acid. The structures of 2‐chloro‐4,7‐dinitrotropone, 2,4,7‐trichlorotropone and 2,4,7‐tribromotropone have been confirmed on the basis of chemical facts together with the spectroscopical evidences. The chemical and physical properties of the above compounds have also been investigated.