Synthesis of a novel exceedingly strong nonionic superbase

Phosphorus, Sulfur and Silicon and Related Elements

Volumn 123, Issue , 1997, Pages 301-312

  D'Sa, Bosco A ^a   Verkade, John G ^a  

^a IOWA STATE UNIVERSITY   (United States)

Author keywords

Nonionic base; Strong base; Synthesis; Zwitterion

Indexed keywords

EID: 0031351227     PISSN: 10426507     EISSN: None     Source Type: Journal    
DOI: 10.1080/10426509708044218     Document Type: Article

References (19)

1. B. A. D'Sa and J. G. Verkade, J. Org. Chem., 61, 2963 (1996).
2. B. A. D'Sa and J. G. Verkade, J. Am. Chem. Soc., 118, 12832 (1996).
3. N. Laszlo, V. Tamas, B. A. D'Sa and J. G. Verkade, Inorg. Chem., 35, 6102 (1996).
4. J. G. Verkade, Coord Chem. Rev., 137, 233 (1994).
5. B. A. D'Sa and J. G. Verkade, J. Org. Chem., accepted.
6. J. S. Tang and J. G. Verkade, J. Org. Chem., 61, 8750 (1996).
7. T. Mohan, S. Arumugam, T. Wang, R. A. Jacobson and J. G. Verkade, Heteroatom. Chem., 7, 455 (1996).
8. J. S. Tang and J. G. Verkade, J. Org. Chem., 59, 7793 (1994).
9. J. S. Tang and J. G. Verkade, Angew. Chem. Int. Ed. Engl., 32, 896 (1993).
10. J.S. Tang, T. Mohan and J. G. Verkade, J. Org. Chem., 59, 4931 (1994).
11. A. E. Wroblewski, J. Pinkas and J. G. Verkade, Main Group Chemistry; 1, 69 (1995).
12. A. W. Langer, Advances in Chemistry, 1974, 130, Chapter 6.
13. Y. Zhou and J. G. Verkade, unpublished results.
14. H. Schmidt, C. Lensink, S. K. Xi and J. G. Verkade, Z. Anorg. Allg. Chem., 75, 578 (1989).
15. J. March, "Advanced Organic Chemistry; Reactions Mechanisms and Structure", Third edition. John Wiley & Sons Inc.: New York, 1985, p 222.
16. D. S. Milbrath and J. G. Verkade, J. Am. Chem. Soc., 99, 6607 (1977).
17. M. A. H. Laramay and J. G. Verkade, Z. Anorg. Allg. Chem., 605, 163 (1991).
18. J. G. Verkade, Acc. Chem. Res., 26, 483 (1993).
19. 1H NMR integration of the distilled mixture of 4a and 4b. Hence the ratio mol 4a/mol 4b = 2z/3z(1-z) can be calculated. Letting x and y equal the weight in g of 4a and the weight in g of 4b in the mixture, respectively, we have that the mole ratio 4a/4b is also 230y/272x where the molecular weights of 4a and 4b are 230 and 272 g/mol, respectively. Since the total weight of the mixture is known, the simultaneous equations provide the solution for x and y from which the total volume of hexanes in mL is {(mol of 4a /0.32 M) - (g of 4b)/ 0.92} where the density of 4b = ∼ 0.92 g/mL.