Thermal and photochemical behavior of 2-sila-and germa-cyclopentanone

A Hassner, JA Soderquist

Index: Hassner, Alfred; Soderquist, John A. Tetrahedron Letters, 1980 , vol. 21, p. 429 - 432

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Citation Number: 14

Abstract

Pyrolysis and photolysis of the first examples of five-membered ring sila and germa ketones is reported. The photolysis of leading to a cyclic acetal via a siloxycarbene is contrasted to the behavior of the germa analog which gives ring cleavage via a ketene intermediate. ... Accts. Chem. Res., 7 (1974), p. 77 and references cited therein. ... Nmr (CCl 4 ): δ = 0.04 (s, 3H); 0.16 (s, 3H); 0.55 (m, 2H); 1.20 (s, 9H); 1.40–2.20 (m, 4H); 5.03 (m, 1H). Ir (tf); 2970 (s); 2930 (s); ...