TY - JOUR
T1 - Trans alkenylpyridine and alkenylamine complexes of platinum
AU - Shaver, Michael P.
AU - Vogels, Christopher M.
AU - Wallbank, Andrew I.
AU - Hennigar, Tracy L.
AU - Biradha, Kumar
AU - Zaworotko, Michael J.
AU - Westcott, Stephen A.
PY - 2000
Y1 - 2000
N2 - Addition of cis-cyclooctene (coe) to K2PtCl4 gives trans- [PtCl2(coe)]2 (1), which reacts with excess coe to give trans- PtCl2(coe)2 (2). Compound 2 was characterized by an X-ray diffraction study and crystals were found to be triclinic, a = 5.7838(5), b = 7.4347(6), c = 9.9972(9) A, α = 83.924(1), β = 87.844(2), γ = 73.546(1)°, Z = 1, with space group P1. Addition of 4-vinylpyridine (4vp) to 1 gave trans-PtCl2(4vp)2 (5) which was also characterized by an X-ray diffraction study. Crystals of 5 were monoclinic, a = 8.2255(6), b = 12.8254(10), c = 6.9624(5) A, β = 98.8230(10)°, Z = 2, with space group P21/c. Although alkenylamines react with 1 to give a mixture of products, addition of one equivalent of apve (H2NCH2CH2CH2OCH=CH2) to 1 cleanly afforded the organometallic product trans- PtCl2(coe)(thmo) (thmo = tetrahydro-2-methyl-1,3-oxazine) arising from a metal-catalyzed intramolecular hydroamination of the starting alkenylamine. Initial investigations into the functionalization of metal complexes containing pendant alkene groups have shown that catecholborane can be added in some cases, using a rhodium catalyst, to give the corresponding organoboronate ester platinum compounds.
AB - Addition of cis-cyclooctene (coe) to K2PtCl4 gives trans- [PtCl2(coe)]2 (1), which reacts with excess coe to give trans- PtCl2(coe)2 (2). Compound 2 was characterized by an X-ray diffraction study and crystals were found to be triclinic, a = 5.7838(5), b = 7.4347(6), c = 9.9972(9) A, α = 83.924(1), β = 87.844(2), γ = 73.546(1)°, Z = 1, with space group P1. Addition of 4-vinylpyridine (4vp) to 1 gave trans-PtCl2(4vp)2 (5) which was also characterized by an X-ray diffraction study. Crystals of 5 were monoclinic, a = 8.2255(6), b = 12.8254(10), c = 6.9624(5) A, β = 98.8230(10)°, Z = 2, with space group P21/c. Although alkenylamines react with 1 to give a mixture of products, addition of one equivalent of apve (H2NCH2CH2CH2OCH=CH2) to 1 cleanly afforded the organometallic product trans- PtCl2(coe)(thmo) (thmo = tetrahydro-2-methyl-1,3-oxazine) arising from a metal-catalyzed intramolecular hydroamination of the starting alkenylamine. Initial investigations into the functionalization of metal complexes containing pendant alkene groups have shown that catecholborane can be added in some cases, using a rhodium catalyst, to give the corresponding organoboronate ester platinum compounds.
KW - Alkenylamines
KW - Alkenylpyridines
KW - Hydroamination
KW - Hydroboration
KW - Plati num
UR - http://www.scopus.com/inward/record.url?scp=0033920708&partnerID=8YFLogxK
U2 - 10.1139/v00-060
DO - 10.1139/v00-060
M3 - Article
AN - SCOPUS:0033920708
SN - 0008-4042
VL - 78
SP - 568
EP - 576
JO - Canadian Journal of Chemistry
JF - Canadian Journal of Chemistry
IS - 5
ER -