Chapter 29 — Further Reading

Textbooks

• Clayden, Greeves, and Warren. Organic Chemistry, 2nd ed. (Oxford University Press, 2012). Chapter 27 ("Conjugate Addition and Substitution"). The clearest treatment of 1,2 vs 1,4 selectivity and Michael addition mechanism.

• McMurry, John. Organic Chemistry, 9th or later ed. (Cengage). Chapter 23 ("Carbonyl Condensation Reactions"). Includes Michael in functional-group context.

• Carey and Sundberg. Advanced Organic Chemistry, Part B: Reactions and Synthesis, 5th ed. (Springer, 2007). Chapter 9 ("Conjugate Addition") and Chapter 13 ("Asymmetric Synthesis"). Detailed treatment.

• Smith, Michael B. March's Advanced Organic Chemistry, 7th ed. (Wiley, 2013). Chapters on 1,4-addition.

• Hoveyda, A. H., et al. (eds.) (2008). Conjugate Addition Reactions in Organic Synthesis. Wiley-VCH. Comprehensive review of Michael chemistry, including asymmetric variants.

Primary literature: Michael and Robinson

• Michael, A. (1887). "Ueber die Addition von Natriumacetessigäther und ähnlichen Verbindungen zu Acrylsäureester und Akrolein." Journal für Praktische Chemie 35, 349–356. The original Michael paper.

• Robinson, R., and Schöpf, C. (1917). "Uber den Zusammenhang zwischen Tropin und Atropin." Berichte der Deutschen Chemischen Gesellschaft 50, 1075–1102. The Robinson tropinone synthesis — the original Robinson annulation.

• Stork, G., et al. (1963). "The enamine alkylation and acylation of carbonyl compounds." Journal of the American Chemical Society 85, 207. The Stork enamine method.

• Bunnett, J. F. (1962). "Selectivity of nucleophilic attack on α,β-unsaturated carbonyl compounds." Journal of the American Chemical Society 84, 4059. Quantitative treatment of 1,2 vs 1,4 selectivity by HSAB principles.

• Hajos, Z. G., and Parrish, D. R. (1974). "Asymmetric synthesis of bicyclic intermediates of natural product chemistry." Journal of Organic Chemistry 39(12), 1615–1621. The Hajos-Parrish-Eder-Sauer-Wiechert reaction — the first asymmetric organocatalytic Robinson, predating List & MacMillan's renaissance.

• List, B., and Hong, B.-Y. (2001). "Proline-catalyzed asymmetric reactions." Chemical Reviews 107, 5471. Modern revival of organocatalytic asymmetric Michael and Robinson.

• MacMillan, D. W. C. (2008). "The advent and development of organocatalysis." Nature 455, 304–308. Nobel-laureate's perspective on organocatalysis, including asymmetric Michael.

Primary literature: covalent drugs

• Pan, Z., et al. (2007). "Discovery of selective irreversible inhibitors for Bruton's tyrosine kinase." ChemMedChem 2, 58–61. The discovery paper for ibrutinib.

• Honigberg, L. A., et al. (2010). "The Bruton tyrosine kinase inhibitor PCI-32765 [ibrutinib] blocks B-cell activation and is efficacious in models of autoimmune disease and B-cell malignancy." Proceedings of the National Academy of Sciences USA 107(29), 13075–13080. Proof of concept for ibrutinib.

• Janne, P. A., et al. (2015). "AZD9291 in EGFR-mutant non-small-cell lung cancer." New England Journal of Medicine 372(18), 1689–1699. Osimertinib's clinical trial.

• Hong, D. S., et al. (2020). "KRAS G12C inhibition with sotorasib in advanced solid tumors." New England Journal of Medicine 383, 1207–1217. Sotorasib's clinical trial.

• Singh, J., et al. (2011). "The resurgence of covalent drugs." Nature Reviews Drug Discovery 10, 307–317. Review of the covalent drug renaissance.

• Ostrem, J. M., and Shokat, K. M. (2016). "Direct small-molecule inhibitors of KRAS: from structural insights to mechanism-based design." Nature Reviews Drug Discovery 15, 771–785. Structure-based design of K-Ras G12C inhibitors.

Steroid synthesis references

• Woodward, R. B., et al. (1952). "The total synthesis of cortisone." Journal of the American Chemical Society 74, 4223. The landmark cortisone synthesis using Robinson annulation.

• Torgov, I. V., and Ananchenko, S. N. (1963). The Torgov synthesis of estrone via Robinson annulation. Tetrahedron 19, 1339.

• Cane, D. E. (1990). "Enzymatic formation of sesquiterpenes." Chemical Reviews 90, 1089–1103. Biosynthetic perspective on steroid and terpene synthesis.

Computational tools

• Avogadro (https://avogadro.cc/). Build α,β-unsaturated carbonyls and visualize the LUMO. The β-C should have the largest LUMO amplitude.

• RxnFinder (https://rxnfinder.com/). Search for Michael disconnections in retrosynthesis.

• PubChem — look up: ibrutinib (CID 24821094), sotorasib (CID 137278711), afatinib (CID 10184653).

Online resources

• Master Organic Chemistry, "Michael Addition" series. Free undergraduate-level explanations.

• Khan Academy: Organic Chemistry — Michael and Robinson videos.

• Organic Chemistry Portal (https://www.organic-chemistry.org/) — searchable reaction database including Michael variants.

For practice problems

• Klein, David. Organic Chemistry as a Second Language, 4th ed. (Wiley). Chapter on Michael chemistry. Klein's scaffolded approach is excellent for solidifying patterns.

• Karty, Joel. Organic Chemistry: Principles and Mechanisms, 2nd ed. (W. W. Norton, 2018). Chapter on conjugate addition is well-paced.

• Sorrell, Thomas N. Organic Chemistry, 2nd ed. (University Science Books, 2006). Chapter on Michael and Robinson.

Mathematically inclined readers

• Houk, K. N., et al. (multiple papers, 1980s-2010s). DFT analyses of Michael transition states, predicting 1,2 vs 1,4 selectivity from first principles.

• Perez-Ruiz, R., and Jiménez, M. C. (multiple papers). Photochemical Michael reactions; computational mechanistic studies.

• Liu, F., and Houk, K. N. (2014). "Electronic origin of the 1,3-dipolar cycloaddition transition state." Journal of the American Chemical Society 136, 11483. Related orbital analysis applicable to Michael.

Notes on this chapter's pedagogy

Chapter 29 caps the carbonyl reactivity arc: it brings together the 1,2 (addition, Ch 25) and 1,4 (conjugate, this chapter) modes of attack on the same substrate. By understanding both, students can predict which mode applies in any situation.

The chapter also bridges to modern medicinal chemistry: covalent drugs (ibrutinib, sotorasib) are central to current cancer therapy. The chemistry of these drugs is exactly Chapter 29 thia-Michael — a single principle, applied with sophistication.

The Robinson annulation is the most beautiful sequence in organic synthesis: Michael + intramolecular aldol condensation. Two C-C bonds, one ring, one operation. Robinson's 1947 Nobel Prize honored this kind of elegant strategy. Even now, 80 years later, Robinson remains a workhorse of natural product synthesis.

Together with Chapters 27 (enolates) and 28 (aldol/Claisen), this chapter forms a tight pedagogical sequence: enolate formation → enolate attack on C=O (aldol) → enolate attack on C=C-C=O (Michael). Three chapters, one mechanism family, ever-elaborating applications.