118326-90-2Relevant articles and documents
SYNTHESIS AND STRUCTURE OF 1,2,3,4,4a,10a-HEXAHYDROPHENANTHRENES SUBSTITUTED ON THE AROMATIC RING
Chini, Marco,Crotti, Paolo,Macchia, Franco,Domiano, Paolo
, p. 369 - 374 (2007/10/02)
6-Methoxy- (1b) and 7-bromo-trans-1,2,3,4,4a,10a-hexahydrophenanthrene (1c) have been prepared from their corresponding 9-oxo derivatives 4b and 4c.The 6-methoxy compound 4b has been prepared through a multi-step synthesis, including a cyclization reaction, starting from 2-(m-methoxyphenyl)-2-cyclohexenone, 8.The 7-bromo derivative 4c has been prepared as the only product by bromination of the known ketone 4a, unsubstituted on the aromatic ring, by means of the so called >.The structure and configuration of 1b has been established through X-ray crystal structure determination of the acetate of the hydrobromous acid adduct of 1b.The position of the bromine in all the 7-bromo derivatives has been established by means of an 1H NMR study of the aromatic pattern of the ketone 4c.