... Tetrahedron. Volume 19, Issue 12, 1963, Pages 2039–2049. ... Tetrahedron, 19 (1963), p. 2051 following paper. 3; ... 25; The preparation of 2,4,4-trimethylcyclopentanone by acid-catalyzed rearrangement of isophorone oxide is described in Organic Synthesis Vol. 39, p. 70. ...