ISSN:
0018-019X
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
In contrast to the behavior of 4-substituted-1,2, 4-triazoline-3, 5-diones which add to the syn-face of the cyclohexadiene with respect to the hetero-ring in propellanes of type 1, dienophiles containing a C, C double bond instead of an N, N double bond add exclusively to the anti-face of the same substrates. This supports our thesis that these reactions are controlled by secondary orbital interaction between the N, N dienophiles and the hetero-ring of the substrates, an interaction which cannot exist in the C, C dienophiles.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/hlca.19790620446
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