References for chapter

1 C-substitution of nitrogen heterocycles , Vorbriiggen, H. and Maas, M., Heterocycles, 1988,27, 2659 (discusses electrophilic and radical substitutions, lithia-tions and the use of A -oxides) Regioselective substitution in aromatic six-membered nitrogen heterocycles , Comins, D. L. and O Connor, S., Adv, Heterocycl. Chem., 1988, 44, 199 (discusses electrophilic, nucleophilic, and radical substitution, and metallation). 

3 These terms, introduced by Baldwin in his analysis of the facility of cyclising processes according to stereoelectronic considerations, are well described in Stereoelectronic effects in organic chemistry , Deslongchamps, P., Pergamon Press, 1983. 

5 Hetero Diels-Alder methodology in organic synthesis , Roger, D. R. and Weinreb, S. M., Academic Press, 1987. 

3-Dipolar cycloaddition chemistry , Vols 1 and 2, Ed. Padwa, A., Wiley-Interscience, 1984. 

11 Recent advances in the chemistry of carbazoles . Joule, J. A., Adv. Heterocycl. Chem., 1984, 35, 84 Phosphite-reduction of aromatic nitro-compounds as a route to heterocycles , Cadogan, J. I. G., Synthesis, 1969, 11. 

---

The average wage of the nonsalaried laborers can be obtained from Chemical Week s annual plant site issue (see references for Chapter 2) or the U. S. Department of Labor. This average wage does not include retirement benefits, social security, workman s compensation, company health insurance contributions, stock options, holidays and vacations, and other fringe benefits. These benefits... 

---