摘要:

AbstractFour new myrsinol diterpenes, euphorprolitherins A‐D (1–3, 5), were isolated from the ethanolic extract of the mot ofEuphorbia prolifera, along with a known one. SPr5 (4). The structures were elucidated on the basis of their spectroscopic evidences. The structure and relative stereochemistry of 1 were confirmed by X‐ray crystallog

ISSN:1001-604X    

DOI:10.1002/cjoc.20040220122

出版商:Wiley‐VCH Verlag GmbH&Co. KGaA    

年代:2004

数据来源: WILEY

摘要:

AbstractThe novel complex di‐n‐butyltin(IV) 2‐oxo‐propionic acid (4‐pyridinecarbonyl) hydrazone, (n‐C4H9)2Sn‐[O2CC(CH3)=N‐N=C(‐O)C5N‐4] (H2O) has been synthesized and its structure has been determined by X‐ray diffraction analysis. The complex crystallizes in orthorhombic system with space groupPca21. Crystal data:a=2.7540(9) nm,b=0.9676(3) nm,c=1.5750(5) nm, V=4.197(2) nm3,Dc=1.444 g/cm3, Z=8. μ= 1.241 mm−1.F(000)= 1856,R1=0.0462 andwR2=0.1001. In the crystals of the title complex, the tin atom is in six‐coordination with a distorted octahedral geometry, three oxygen atoms [O(1), O(3) and O(4)] and one nitrogen atom N(1) forming the equatorial plane and C(10)‐Sn(1)‐C(14) being the axis. Two molecules form a dimer with weak interactions of S

ISSN:1001-604X    

DOI:10.1002/cjoc.20040220123

出版商:Wiley‐VCH Verlag GmbH&Co. KGaA    

年代:2004

数据来源: WILEY

摘要:

AbstractAn acetylide‐bridged dinuclear platinum(II) terpyridyl complex, [Pt(4‐p‐tolyl‐terpy)‐i‐phenyl‐=‐(4′‐p‐tolyl‐terpy)Pt](C104)2(1). has been successfully synthesized and its photophysical

ISSN:1001-604X    

DOI:10.1002/cjoc.20040220124

出版商:Wiley‐VCH Verlag GmbH&Co. KGaA    

年代:2004

数据来源: WILEY

摘要:

AbstractAn alternative method for anomeric deacetylation of fully acetylated carbohydrates has been developed using imidazole in methanol.

ISSN:1001-604X    

DOI:10.1002/cjoc.20040220125

出版商:Wiley‐VCH Verlag GmbH&Co. KGaA    

年代:2004

数据来源: WILEY

ISSN:1001-604X    

DOI:10.1002/cjoc.20040220101

出版商:Wiley‐VCH Verlag GmbH&Co. KGaA    

年代:2004

数据来源: WILEY