ISSN:0165-0513    

DOI:10.1002/recl.19821010601

出版商:WILEY‐VCH Verlag    

年代:1982

数据来源: WILEY

摘要:

AbstractHydrated ferric chloride, FeCl3·6 H2O, in a polar, hydroxylic solvent converted 2‐alkylcyclopentanones directly into 2‐alkyl‐2‐cyclopentenones on heating in the presence of air. Yields of isolated products were about 40 %. The scope of the reaction is discussed. With cupric chloride, chloroketones were formed as intermediates, which could be dehydrochlorinated to 2‐alkyl‐2‐cyclopentenones in

ISSN:0165-0513    

DOI:10.1002/recl.19821010602

出版商:WILEY‐VCH Verlag    

年代:1982

数据来源: WILEY

摘要:

AbstractThe previously unreported lithio derivative of α‐(trimethylsilyl)tosylmethyl isocyanide (4) has been used in an improved method for the synthesis of 1‐isocyano‐l‐tosylalkenes (1) by reaction with aromatic aldehydes, with α,β‐unsaturated aldehydes and with cyclobutanone (Peterson reaction). Different results are obtained

ISSN:0165-0513    

DOI:10.1002/recl.19821010603

出版商:WILEY‐VCH Verlag    

年代:1982

数据来源: WILEY

摘要:

AbstractA new synthesis of 3‐aminothiophene is proposed starting from 3‐thenoic acid via isopropyl 3‐thienylcarbamate as intermediate. Thermal decomposition of this latter in alkaline medium gives 3‐aminothiophene.NMR and mass spectral studies revealed that the instability of the amine is due to its polymerisation via the formation of the dimer di‐3‐thienylamine and the trimer tri‐3

ISSN:0165-0513    

DOI:10.1002/recl.19821010604

出版商:WILEY‐VCH Verlag    

年代:1982

数据来源: WILEY

摘要:

AbstractWithin the context of a study aimed at a possible delocalized structure (IVb) of the cubane dication energies, charges and geometries have been calculated for three known and for four unknown types of dications derived from the (CH)82+family.

ISSN:0165-0513    

DOI:10.1002/recl.19821010605

出版商:WILEY‐VCH Verlag    

年代:1982

数据来源: WILEY

摘要:

Abstract3‐Chloroquadricyclane (1), 2(4)‐chlorosemibullvalene (2a), a series of 2‐norbornyl halides and 4,4‐dichlorotetracyclo[3.3.0.02.8.03.6]octane (4) have been treated with lithium p,p′‐di‐tert‐butylbiphenyl. Lithiation (2, norbornyl halides), lithiation with rearrangement (4) and lithiation with rearrangement followed by reduction to the cycloheptatrienyl trianion (1→14) have be

ISSN:0165-0513    

DOI:10.1002/recl.19821010606

出版商:WILEY‐VCH Verlag    

年代:1982

数据来源: WILEY

摘要:

AbstractThe unsymmetrical bilirubin model compound 2,3,17,18,22‐pentamethyl‐ 10,23‐dihydro‐1,19‐[21H,24H]‐bilindione1chas been prepared in good yield. Irradiation of1cleads to a photostationary state which contains three photoproducts in addition to the starting material. The photoproducts have been isolated and fully characterized as the three possible geometric isomers of1c. Short irradiation of each of the photoisomers shows that a one‐photon one‐double‐bond isomeris

ISSN:0165-0513    

DOI:10.1002/recl.19821010607

出版商:WILEY‐VCH Verlag    

年代:1982

数据来源: WILEY

ISSN:0165-0513    

DOI:10.1002/recl.19821010608

出版商:WILEY‐VCH Verlag    

年代:1982

数据来源: WILEY