Synthesis and Diels–Alder cycloaddition reaction of norbornadiene and benzonorbornadiene dimers

• Bilal Nişancı,
• Erdin Dalkılıç,
• Murat Güney and
• Arif Daştan

Beilstein J. Org. Chem. 2009, 5, No. 39, doi:10.3762/bjoc.5.39

• Bilal Nisanci Erdin Dalkilic Murat Guney Arif Dastan Atatürk University, Faculty of Science, Department of Chemistry, 25240 Erzurum-TURKEY 10.3762/bjoc.5.39 Abstract Dimeric forms of norbornadiene and benzonorbornadiene were synthesized starting with known monobromide derivatives. The Diels–Alder

• cycloaddition reaction of dimers with TCNE and PTAD was investigated and new norbornenoid polycyclics were obtained. All compounds were characterized properly using NMR spectroscopy. Keywords: benzonorbornadiene; Diels–Alder reaction; norbornadiene; Stille coupling; Introduction Norbornadiene (1) and related

• rearrangement [12][13][14][15], as well as in other instances [16][17][18][19][20][21][22]. Therefore, functionalizations of these compounds are important. In this study, we investigated the synthesis and Diels–Alder cycloaddition reaction of norbornadiene and benzonorbornadiene dimers. Results and Discussion

Mixtures of monodentate P-ligands as a means to control the diastereoselectivity in Rh-catalyzed hydrogenation of chiral alkenes

• Manfred T. Reetz and
• Hongchao Guo

Beilstein J. Org. Chem. 2005, 1, No. 3, doi:10.1186/1860-5397-1-3

• precursor Rh(nbd)2BF4 (nbd = norbornadiene) was treated with the ligands to form pre-catalysts of the type RhL2(nbd)BF4 and free nbd. Dichloromethane served as the solvent. In the case of the hydrogenation of the allylic alcohol 1, 21 of the 23 ligands were employed, which means a total of 210 different