The use of 4-substituted hydrindenes in the preparation of cyclopentanophenanthrene derivatives

RA Barnes, L Gordon

Index: Barnes; Gordon Journal of the American Chemical Society, 1949 , vol. 71, p. 2644,2646

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Citation Number: 5

Abstract

The alternate approach involving construction of rings A and B from a hydrindene derivative has not been previously empl~ yed.~ The 5-substituted hydrindenes which are the major products of the usual aromatic substitution reactions on hydrindene could cyclize in either of two ways. 5 In the present work this alternate approach has been applied by starting with 4- substituted hydridenes, which can cyclize only at the desired position.