The reactions k N n m endo-5-Ybicyclo[2.2.2loct-2-ene (NYBO) eno-5-Ybicyclo[2.2.2loct-2-ene (XYBO) O + < , < (YE) KXYBO (CHD) where Y = CH, (MI, C,H, (E), i-C,H, (I), and t-C,H, (TI have been studied between 488 and 606 K. The pressures of CHD ranged from 16 to 124 torr and those of YE from 57 to 62
Stereoselectivity in the kinetically controlled cycloadditions of N-tosyl-trihalomethyl-imines with cyclopenta- and cyclohexa-1,3-dienes
โ Scribed by G. Krow; R. Rodebaugh; J. Marakowski; Kermit C. Ramey
- Book ID
- 104247203
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- French
- Weight
- 186 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0040-4039
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๐ SIMILAR VOLUMES
The kinetics of the Diels-Alder additions of C H 2 = CHCN, CH, = C(CH3) CN, and cisand trans-CH,CH = CHCN to cyclohexa-l,3-diene have been studied in the gas phase. The stereochemistry of these reactions is discussed. In terms of a biradical mechanism, a minimum value of 4.1 5 0.8 kcal mol-' for the
The kinetics of the Diels-Alder additions of CH,= CHCHO, CH2= C(CHdCH0, and CH2= CHC(CH,)O to cyclohexa-1,3-diene (CHD) have been studied in the gas phase. The stereochemistry and the mechanism of these reactions are discussed. In contrast with other Diels-Alder additions involving CHD as diene, a b
## Abstract The reaction of acetylene (A) with cyclohexaโ1,3โdiene (CHD) has been studied between 450 and 592 K. The pressures of A ranged from 25 to 112 torr and those of CHD from 8 to 62 torr. The reaction yields only ethene (E) and benzene (B) instead of bicyclo[2.2.2]octaโ2,5โdiene (BOD), the p