Document Type and Number:
Japanese Patent JPS4817254
Kind Code:
B1
Abstract:
1,206,783. Preparation of α,#-disubstituted alkanes. TECHNI-CHEM CO. 3 Oct., 1967 [10 Oct., 1966; 2 Feb., 1967; 29 May, 1967; 15 Aug., 1967], No. 45033/67. Heading C2C. Compounds of the formula wherein X is an electronegative group selected from -NO 2 and -COOR1 , where R1 is a C 1-12 hydrocarbon radical, n is an integer from 2 to 17 when X is -NO 2 or an integer from 7 to 17 when X is -COOR1 , Z is -OH, -OR1 , -NH 2 , -NHR1 , -NR1 2 or -NR1 R11 and R11 is a hydrocarbon radical different from R1 , are obtained by reacting a compound of the formula with an agent selected from water, aqueous ammonia, an aqueous amine of the formula R1 NH 2 , R1 R11 NH or R1 2 NH, or a compound providing RO- ions or OH- ions and an alkali metal and where necessary, with a protic solvent providing H+ cations, for example an alkanol having less than 7 carbon atoms, water or ammonium hydroxide. The reaction may be carried out in one step in a protic solvent or in two steps by carrying out the first stage of the reaction in an aprotic solvent. The starting materials in which X is an ester group may be obtained by reaction of the corresponding cyclic ketone with a dialkyl carbonate; starting materials wherein X is a nitro group may be prepared by nitration of the corresponding ester derivative. The products of the invention may be further worked up, for example, by hydrolysis of ester derivatives to the free acids or by reduction of the nitro derivatives to give the corresponding amino-derivatives; cyclic ethylene brassylate may be obtained by heating brassylic acid with ethylene glycol followed by depolymerization by heating.
More Like This:
| WO/2016/168527 | ALIPHATIC MATERIALS AND USES THEREOF IN HEATING AND COOLING APPLICATIONS |
| WO/2002/014257 | SYNTHESIS OF $g(A),Ω-DIESTERS |
Application Number:
JP285670A
Publication Date:
May 28, 1973
Filing Date:
January 09, 1970
Export Citation:
International Classes:
C07C69/34; B01J23/00; B01J27/00; C07B41/00; C07B43/02; C07B61/00; C07C45/54; C07C51/09; C07C51/31; C07C53/126; C07C55/02; C07C69/12; C07C69/14; C07C205/03; C07C205/05; C07C205/40; C07C205/41; C07C205/45; C07C205/51; C07D321/00