A critical review of the 2006 literature preceded by two by Gordon W. Gribble and John A. Joule (Eds.)

By Gordon W. Gribble and John A. Joule (Eds.)

Growth in Heterocyclic Chemistry (PHC), is an annual evaluation sequence commissioned by way of the overseas Society of Heterocyclic Chemistry (ISHC). Volumes within the sequence include either highlights of the former year's literature on heterocyclic chemistry and articles on new constructing themes of specific curiosity to heterocyclic chemists. The spotlight chapters in quantity 20 are all written by means of major researchers of their box and those chapters represent a scientific survey of the real unique fabric mentioned within the literature of heterocyclic chemistry in 2007. extra articles during this quantity assessment '2-Indolylacyl radicals within the synthesis of indole compounds' and 'Cascade reactions of carbonyl ylides for heterocyclic synthesis'.

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Extra info for A critical review of the 2006 literature preceded by two chapters on current heterocyclic topics

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Chlorins and pericyclic reactions <00COC 139; 00MI 1>. Benzoporphyrins, (dihydroporphyrins) and bacteriochlorins (tetrahydroporphyrins) are important derivatives which can demonstrate significant medicinal applications. The search for new synthetic methodologies leading to such compounds is a target for many groups. Diels-Alder (DA) and 1,3-dipolar cycloaddition (l,3-DC) (1,3-DC) reactions are simple and Diels-Alder very versatile transformations to introduce a wide range of of substituents at the meso- and betapyrrolic positions of porphyrins, thus leading to promising derivatives obtained in many cases in one-pot transformations.

More recently, porphyrinic azomethine ylide 28 (M == Ni) has been trapped with isatin to give a spiro porphyrin derivative 32 (Scheme 9) <06SC2655>. o ~ o 0 -Ph ~N-Ph O ~ o~ =\N~ [28] o H 0 16 o o Mh-N ~ ~ _ p h o Me-~~ N o Ph Ph P h Ph Ph Ph ~ P h Ph Ph Ph Ph Ph 30(96%mixtureofdiastereomers) 30 (96% mixture of diastereomers) 31 (94%) (94%) 31 (13%) 32 (13%) of porphyrinic azomethine ylide 28 with different Scheme 9. g. 33 (Scheme 10) . <01JCS(PT1)2752>. N -'Me [28] Ph Ph h Ph 33 33(55%) (55%) Ph Scheme 10.

Hemming, C. Loukou, S. K. Smalley, Synlett 2004, 101. 101. M. Harmata, X. K. K. Ghosh, Tetrahedron Lett. 2004,45,5233. 2004, 45, 5233. M. Harmata, X. Hong, Org. Org. Lett. 2005, 7,3581. 7, 3581. M. Harmata, X. Hong, Tetrahedron Lett. 2005,46,3847. 2005, 46, 3847. M. L. G. L. Barnes, Bames, J. Org. Org. Chem. Chem. 2006, 71,3650. 71, 3650. 44 Chapter 2 Porphyrins Diels-Alder and 1,3-dipolar Porphyrins in Diels-Alder 1,3-dipolar cycloaddition reactions Ana M. G. Silva and Jose Jos6 A. S. 1 OVERVIEW OVERVIEW OF OF THE THE CYCLOADDITION CYCLOADDITION REACTIONS REACTIONS OF OF PORPHYRINS PORPHYRINS Interest in porphyrin chemistry started centuries ago with Man trying to understand why blood is red and plants are green <78MIl>.

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