References
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- Dauben , W. G. and Dietsche , T. J. 1972 . J. Org. Chem. , 37 : 1212 See for examples and References therein
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- This compound was prepared in an overall yield of 46–50% from 3-methylcyclohex-2-enone by a modified sequence of conjugate HCN addition (aq-KCN-EtOH, reflux), alkaline hydrolysis in situ (aq KOH, reflux) and esterification (MeOH-H2SO4-cat.H3BO3, reflux) of the crude acid
- Chakrabortty , P. N. , Dasgupta , R. , Dasgupta , S. K. , Ghosh , S. R. and Ghatak , U. R. 1972 . Tetrahedron , 28 : 4653
- The ketone 10a has been synthesized in an unambiguous route from 3 in an overall yield of ca. 10% through the following sequence. Conversion4b of 3 to 12 (bp 135–137°/0.6 mm) followed by conjugate addition of C6H5MgBr in presence of CuI, saponification (aq-ethylene glycol-KOH, reflux), decarboxylation (180–200°), esterification with ethereal soln. of CH2N2, Dieckmann cyclisation of the resulting diester (t-BuOK-C6H6, reflux), and finally decarboxylation (5% aq. EtOH-KOH, reflux) of the crude β-ketoester to 10a