Page 1. Tetrahedron Vol. 51, No. 5, pp. ... The temperature was lowered to -78 °C and 1-carvone (51 mg, 0.34 mmol) Page 6. ... However, this reagent adds to 4a to produce an alkylated pyridine. 5. Lipshutz, BH; Sengupta, S. Organic Reactions (Wiley, NY, 1992), vol. 41, p. 135-633. ...