19 Kryptoracemates
403
25. Erhardt, S., Macgregor, S.A., McCullough, K.J., Savill, K., Taylor B.J.: Model studies of
β-scission ring-opening reactions of cyclohexyloxy radicals: application to thermal rearrangements of dispiro-1,2,4-trioxanes. Org. Lett. 5569–5572 (2007)
26. McCullough, K.J., Hursthouse, M.B., Coles, S.J.: Private Communication to the Cambridge
Structural Database. Refcode NIWHUX01 (1993)
27. Santarsieroa, B.D., Marsh, R.E. (1922–2017): Acta Crystallogr. C73, 1038–1039 (2017)
28. Marsh, R.E.: The importance of weak reflections in resolving the centrosymmetricnoncentrosymmetric ambiguity: a cautionary tale. Acta Crystallogr. B37, 1985–1988 (1981)
29. Marsh, R.E., Spek, A.L.: Use of software to search for higher symmetry: space group C2. Acta
Crystallogr. B57, 800–805 (2001)
30. Steed, K.S., Steed, J.W.: Packing problems: High Z crystal structures and their relationship to
cocrystals, inclusion compounds, and polymorphism. Chem. Rev. 115, 2895–2933 (2015)
31. ter Wiel, M.K.J., van Delden, R.A., Meetsma, A., Feringa, B.L.: Increased speed of rotation
for the smallest light-driven molecular motor. J. Am. Chem. Soc 125, 15076–15086 (2003)
32. Aitken, D.J., Gauzy, C., Pereira, E.: A short synthesis of the cis-cyclobutane β-aminoacid
skeleton using a [2+2] cycloaddition strategy. Tetrahedron Lett 43, 6177–6179 (2002)
33. Allen, F.H., Motherwell, W.D.S., Raithby, P.R., Shields, G.P., Taylor, R.: Systematic analysis
of the probabilities of formation of bimolecular hydrogen-bonded ring motifs in organic crystal
structures. New J. Chem 23, 25–34 (1999)
34. Tiekink, E.R.T.: Supramolecular assembly based on “emerging” intermolecular interactions of
particular interest to coordination chemists. Coord. Chem. Rev. 345, 209–248 (2017)
35. Be¸ sli, S., Coles, S.J., Davies, D.B., Hursthouse, M.B., Ibi¸ so˘ glu, H., Kiliç, A., Shaw, R.A.:
Retention of configuration in the nucleophilic substitution reactions of some nine-membered
ansa derivatives of cyclotriphosphazatriene. Chem. Eur. J 10, 4915–4920 (2004)
36. Furusaki, A., Abe, K., Matsumoto, T.: X-ray structure of (1RS, 5RS, 7SR)-1-acetoxy7-cyano-5-methylbicyclo[3.2.0]heptan-2-one, a photocycloadduct of 2-acetoxy-3-methyl-2cyclopenten-1-one and acrylonitrile. Bull. Chem. Soc. Jpn. 55, 611–612 (1982)
37. Coldham, I., Burrell, A.J.M., White, L.E., Adams, H., Oram, N.: Highly efficient synthesis
of tricyclic amines by a cyclization/cycloaddition cascade: total syntheses of aspidospermine,
aspidospermidine, and quebrachamine. Angew. Chem. Int. Ed. 46, 6159–6162 (2007)
38. Savinsky,R., Hopf, H., Dix, I., Jones, P.G.: Partially hydrogenated [2.2]paracyclophanes as
precursors in polycyclic hydrocarbon chemistry. Eur. J. Org. Chem. 4595–4606 (2001)
39. Su, K.-J., Mieusset, J.-L., Arion, V.B., Brecker, L., Brinker, U.H.: Cope rearrangement versus
a novel tandem retro-Diels—Alder—Diels—Alder reaction with role reversal. Org. Lett 9,
113–115 (2007)
40. Kalesse, M., Wartchow, R.: Structural features for the promotion of optimal stacking in the
solid state. Tetrahedron 54, 8015–8024 (1998)
41. Gültekin, Z., Hökelek, T.: Crystal structure of trans-(1RS,3RS)-2-N,N -Dimethylaminomethyl1,3-dithiolane-1,3-dioxide. Anal. Sci. X-Ray Struct. Anal. Online 22, x9–x10 (2006)
42. Heileman, M.J., Moore, H.W.: Generation and intramolecular cyclization of (2ethenylphenyl)bisketenes. Synthesis of benzofuranones. Tetrahedron Lett. 39, 3643–3646
(1998)
43. Basak, A., Bag, S.S., Mazumdar, P.A., Bertolasi, V., Das A.K.: Molecular recognition in βlactams: The crystal packing in 4-sulfonyl β-lactams. J. Chem. Res. 318–321 (2004)
44. Sharma, V., Tepe, J.J.: Diastereochemical diversity of imidazoline scaffolds via substrate
controlled TMSCl mediated cycloaddition of azlactones. Org. Lett 7, 5091–5094 (2005)
45. Brock, C.P., Duncan, L.L.: Anomalous space-group frequencies for monoalcohols. CnHmO.
Chem. Mater. 6, 1307–1312 (1994)
46. Bis, J.A., Vishweshwar, P., Weyna, D., Zaworotko, M.J.: Hierarchy of supramolecular synthons:
persistent hydroxyl … pyridine hydrogen bonds in cocrystals that contain a cyano acceptor.
Molec. Pharma. 4, 401–416 (2007)
47. Al-Khashashneh, A.M., El-Abadelah, M.M., Boese, R.: Novel synthesis of model
dihydroazepine-fused indolo[2,3-c]quinolines. Heterocycles 60, 73–87 (2003)
403
25. Erhardt, S., Macgregor, S.A., McCullough, K.J., Savill, K., Taylor B.J.: Model studies of
β-scission ring-opening reactions of cyclohexyloxy radicals: application to thermal rearrangements of dispiro-1,2,4-trioxanes. Org. Lett. 5569–5572 (2007)
26. McCullough, K.J., Hursthouse, M.B., Coles, S.J.: Private Communication to the Cambridge
Structural Database. Refcode NIWHUX01 (1993)
27. Santarsieroa, B.D., Marsh, R.E. (1922–2017): Acta Crystallogr. C73, 1038–1039 (2017)
28. Marsh, R.E.: The importance of weak reflections in resolving the centrosymmetricnoncentrosymmetric ambiguity: a cautionary tale. Acta Crystallogr. B37, 1985–1988 (1981)
29. Marsh, R.E., Spek, A.L.: Use of software to search for higher symmetry: space group C2. Acta
Crystallogr. B57, 800–805 (2001)
30. Steed, K.S., Steed, J.W.: Packing problems: High Z crystal structures and their relationship to
cocrystals, inclusion compounds, and polymorphism. Chem. Rev. 115, 2895–2933 (2015)
31. ter Wiel, M.K.J., van Delden, R.A., Meetsma, A., Feringa, B.L.: Increased speed of rotation
for the smallest light-driven molecular motor. J. Am. Chem. Soc 125, 15076–15086 (2003)
32. Aitken, D.J., Gauzy, C., Pereira, E.: A short synthesis of the cis-cyclobutane β-aminoacid
skeleton using a [2+2] cycloaddition strategy. Tetrahedron Lett 43, 6177–6179 (2002)
33. Allen, F.H., Motherwell, W.D.S., Raithby, P.R., Shields, G.P., Taylor, R.: Systematic analysis
of the probabilities of formation of bimolecular hydrogen-bonded ring motifs in organic crystal
structures. New J. Chem 23, 25–34 (1999)
34. Tiekink, E.R.T.: Supramolecular assembly based on “emerging” intermolecular interactions of
particular interest to coordination chemists. Coord. Chem. Rev. 345, 209–248 (2017)
35. Be¸ sli, S., Coles, S.J., Davies, D.B., Hursthouse, M.B., Ibi¸ so˘ glu, H., Kiliç, A., Shaw, R.A.:
Retention of configuration in the nucleophilic substitution reactions of some nine-membered
ansa derivatives of cyclotriphosphazatriene. Chem. Eur. J 10, 4915–4920 (2004)
36. Furusaki, A., Abe, K., Matsumoto, T.: X-ray structure of (1RS, 5RS, 7SR)-1-acetoxy7-cyano-5-methylbicyclo[3.2.0]heptan-2-one, a photocycloadduct of 2-acetoxy-3-methyl-2cyclopenten-1-one and acrylonitrile. Bull. Chem. Soc. Jpn. 55, 611–612 (1982)
37. Coldham, I., Burrell, A.J.M., White, L.E., Adams, H., Oram, N.: Highly efficient synthesis
of tricyclic amines by a cyclization/cycloaddition cascade: total syntheses of aspidospermine,
aspidospermidine, and quebrachamine. Angew. Chem. Int. Ed. 46, 6159–6162 (2007)
38. Savinsky,R., Hopf, H., Dix, I., Jones, P.G.: Partially hydrogenated [2.2]paracyclophanes as
precursors in polycyclic hydrocarbon chemistry. Eur. J. Org. Chem. 4595–4606 (2001)
39. Su, K.-J., Mieusset, J.-L., Arion, V.B., Brecker, L., Brinker, U.H.: Cope rearrangement versus
a novel tandem retro-Diels—Alder—Diels—Alder reaction with role reversal. Org. Lett 9,
113–115 (2007)
40. Kalesse, M., Wartchow, R.: Structural features for the promotion of optimal stacking in the
solid state. Tetrahedron 54, 8015–8024 (1998)
41. Gültekin, Z., Hökelek, T.: Crystal structure of trans-(1RS,3RS)-2-N,N -Dimethylaminomethyl1,3-dithiolane-1,3-dioxide. Anal. Sci. X-Ray Struct. Anal. Online 22, x9–x10 (2006)
42. Heileman, M.J., Moore, H.W.: Generation and intramolecular cyclization of (2ethenylphenyl)bisketenes. Synthesis of benzofuranones. Tetrahedron Lett. 39, 3643–3646
(1998)
43. Basak, A., Bag, S.S., Mazumdar, P.A., Bertolasi, V., Das A.K.: Molecular recognition in βlactams: The crystal packing in 4-sulfonyl β-lactams. J. Chem. Res. 318–321 (2004)
44. Sharma, V., Tepe, J.J.: Diastereochemical diversity of imidazoline scaffolds via substrate
controlled TMSCl mediated cycloaddition of azlactones. Org. Lett 7, 5091–5094 (2005)
45. Brock, C.P., Duncan, L.L.: Anomalous space-group frequencies for monoalcohols. CnHmO.
Chem. Mater. 6, 1307–1312 (1994)
46. Bis, J.A., Vishweshwar, P., Weyna, D., Zaworotko, M.J.: Hierarchy of supramolecular synthons:
persistent hydroxyl … pyridine hydrogen bonds in cocrystals that contain a cyano acceptor.
Molec. Pharma. 4, 401–416 (2007)
47. Al-Khashashneh, A.M., El-Abadelah, M.M., Boese, R.: Novel synthesis of model
dihydroazepine-fused indolo[2,3-c]quinolines. Heterocycles 60, 73–87 (2003)