摘要:

AbstractFrom the difference between the optical rotatory dispersion of pelletierine in acid and in alkaline aqueous solution the absolute configuration was deduced by comparison with 2‐methylpiperidine. It confirms our absolute‐configuration determination by another method. The conclusion contradicts that of a recent publicat

ISSN:0165-0513    

DOI:10.1002/recl.19670860112

出版商:WILEY‐VCH Verlag    

年代:1967

数据来源: WILEY

摘要:

AbstractAn investigation into the occurrence of compounds in the binary system NbCl5Nb2O5is described together with the determination of the phase‐compositions of the three‐phase equilibria S NbOCl 3LG and S NbOCl 3S Nb 2O 5G, as a function of temperature. Finally, the situation of part of the cr

ISSN:0165-0513    

DOI:10.1002/recl.19670860113

出版商:WILEY‐VCH Verlag    

年代:1967

数据来源: WILEY

摘要:

AbstractThe heats of formation of Ag3PO4and Ag3AsO4have been determined by measuring their heats of solution in nitric acid. The results obtained are:

ISSN:0165-0513    

DOI:10.1002/recl.19670860114

出版商:WILEY‐VCH Verlag    

年代:1967

数据来源: WILEY

摘要:

AbstractTen γ‐substituted α‐ethoxycarbonyl‐γ‐butyrolactones(1–10)have been prepared from diethyl malonate and 1‐chloroalkan‐2‐ols. The scope and the course of the reaction are discussed. The products have been investigated by infrared and proton magnetic resonance methods. The lactones have been characterized by their anilides and some

ISSN:0165-0513    

DOI:10.1002/recl.19670860115

出版商:WILEY‐VCH Verlag    

年代:1967

数据来源: WILEY

摘要:

Abstract14C‐labelled “trismethylene‐trinitrobenzene” (II) is oxidized by alkaline permanganate to a hydroxy‐acid (III) with a label distribution supporting a benzilic acid type rearrangement as depicted in

ISSN:0165-0513    

DOI:10.1002/recl.19670860116

出版商:WILEY‐VCH Verlag    

年代:1967

数据来源: WILEY

摘要:

AbstractThe substituent constants of alkyl groups in alkylbenzenes have been determined for dilute solutions in carbon tetrachloride. Especially for compounds with isolated substituents the constants derived satisfactorily correlate the chemical shifts of the ring protons with the substitution type.

ISSN:0165-0513    

DOI:10.1002/recl.19670860117

出版商:WILEY‐VCH Verlag    

年代:1967

数据来源: WILEY

摘要:

AbstractCumulenyl ethers of the type R′R″C  C  C  CHOCH3(with R′ and R″ alkyl) have been prepared in good yields by treatment of bis‐ethers of the type (C2H5O)CH(CH3)OC(R′)(R″)CCCH2OCH3with two equivalents of sodamide in liquid ammonia.From the bis‐ether (C2H5O)CH(CH3)OCH(CH3)CCCH2OCH3a mixture ofcisandtransCH3CCCH  CHOCH3was obtained in goo

ISSN:0165-0513    

DOI:10.1002/recl.19670860118

出版商:WILEY‐VCH Verlag    

年代:1967

数据来源: WILEY

ISSN:0165-0513    

DOI:10.1002/recl.19670860101

出版商:WILEY‐VCH Verlag    

年代:1967

数据来源: WILEY