Summary
The title compounds were prepared as follows:tert.-butyl-indane (10) was formylated to give a 72:28 mixture of the aldehydes23a and23b which were submitted to aKnoevenagel-Doebner condensation to afford the cinnamonic acids24. From the mixture, the pure stereoisomer24a was obtained by one crystallization in 57% yield. Its methylester27a could be quantitatively dealkylated to the methylester8 by treatment with AlCl3 in toluene. Cyclization to the indanone9 was then performedvia the propionic acid7 with polyphosphoric acid in 95% yield. From9 the carboxymethyl derivative30 was obtained by treatment with dimethylcarbonate and NaH. The second synthone 4-chlormethyl-indane (19) was prepared from the corresponding alcohol18 (in 82% yield) which in turn could be obtained from methylester17 by reduction with LiAlH4. The latter was accessible in 75% yield by dealkylation of ester13.
Similar content being viewed by others
Literatur
21. Mitt: Neudeck H, Monatsh Chem127: 201
Veröffentlichung in Vorbereitung
Neudeck H (1988) Monatsh Chem119: 625; Neudeck H (1989) Monatsh Chem120: 597 und 623
Woodward RB, Hoye TR (1977) J Am Chem Soc99: 8007
Arnold RT, Rondestvedt E (1945) J Am Chem Soc67: 1265
Neudeck H (1987) Monatsh Chem118: 627
Rapoport H, Smolinsky G (1960) J Am Chem Soc82: 1171
Fieser LM, Fry EM (1940) J Am Chem Soc62: 3489
Sukh Dev (1955) J Indian Chem Soc32: 403
Wightman RH, Laycock DE, Avdovich HW (1978) J Org Chem43: 2167
Organikum, 16. Aufl (1986) VEB Deutscher Verlag für Wissenschaften, Berlin, S 499
Isabelle ME, Wightman RH, Avdovich HW, Laycock DE (1980) Can J Chem58: 1344
Dallacker F, Van Wersch J (1972) Chem Ber105: 2565
Beets MG, Van Essen,Meerburg W (1958) Rec Trav Chim Pays-Bas77: 860
Hunsberger IM, Lednicer D, Gutowsky HS, Bunker DL, Taussig P (1955) J Am Chem Soc77: 2466
Giovannini E, Rubanis N (1966) Helv Chim Acta49: 561
Fieser LF, Hershberg EB (1937) J Am Chem Soc59: 394
Author information
Authors and Affiliations
Additional information
Herrn Prof. Dr.K. Kratzl mit besten Wünschen zum 80. Geburtstag gewidmet
Rights and permissions
About this article
Cite this article
Melmer, M., Neudeck, H. Aromatische Spirane, 22. Mitt.: Darstellung von Cyclopenteno-4,5-indan-1-on und 2-Carboxymethyl-bzw. 4-Chlormethyl-indan als Synthone für Synthesen von anellierten 2,2′-Spirobiindanonen. Monatsh Chem 127, 275–290 (1996). https://doi.org/10.1007/BF00813793
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00813793