ChemInform Abstract: ORGANOPHOSPHORUS ESTERS. 14. PHASE-TRANSFER CATALYZED ALKYLATION OF DIPHENYLPHOSPHINAMIDE - A NEW SYNTHESIS FOR PRIMARY AND SECONDARY AMINES

1978 ◽  
Vol 9 (2) ◽  
Author(s):  
A. ZWIERZAK ◽  
I. PODSTAWCZYNSKA
Keyword(s):  
Phase Transfer ◽  
Secondary Amines ◽  
New Synthesis ◽  
Primary And Secondary Amines ◽  
Organophosphorus Esters

New Synthesis of N-Acylurea Derivatives

1993 ◽  
Vol 58 (3) ◽  
pp. 575-587 ◽  
Author(s):  
Peter Kutschy ◽  
Milan Dzurilla ◽  
Vlastimír Ficeri ◽  
Dušan Koščík
Keyword(s):  
Secondary Amines ◽  
Amino Group ◽  
Wide Applicability ◽  
New Synthesis ◽  
Primary And Secondary Amines

S-Allyl N-acylmonothiocarbamates react in boiling benzene with primary and secondary amines in the presence of catalytic amounts of triethylamine. In this reaction, the S-allyl group is replaced with the amino group under formation of N-acylurea derivatives in 45 - 90% yields. The wide applicability of the reaction is demonstrated by the synthesis of eighty four N-acyl-N'-substituted and N-acyl-N',N'-disubstituted ureas with various aliphatic, aromatic and heterocyclo substituents.

Reaction of arylmethylenemalonaldehydes with some nucleophiles

1987 ◽  
Vol 52 (11) ◽  
pp. 2699-2709 ◽  
Author(s):  
Dalimil Dvořák ◽  
Zdeněk Arnold
Keyword(s):  
Inorganic Anions ◽  
Secondary Amines ◽  
Tertiary Amines ◽  
Primary And Secondary Amines ◽  
Dipolar Structure

Reaction of arylmethylenemalonaldehydes with tributylphosphine and tertiary amines affords compounds of dipolar structure whereas reaction with primary and secondary amines leads to 1,4-addition products. Salts of nucleophilic inorganic anions add to arylmethylenemalonaldehydes under formation of salts of substituted malonaldehydes.

Synthesis of 2-amino-5,7-dimethyl-4-oxopyrido[3,4-e]-1,3-thiazines

1983 ◽  
Vol 48 (12) ◽  
pp. 3426-3432 ◽  
Author(s):  
Dušan Koščík ◽  
Pavol Kristian ◽  
Ondrej Forgáč
Keyword(s):  
Spectral Data ◽  
Chlorine Atom ◽  
Mass Spectra ◽  
High Reactivity ◽  
Secondary Amines ◽  
Dimroth Rearrangement ◽  
H Nmr ◽  
New Synthesis ◽  
C Nmr

New synthesis of pyrido[3,4-e]-1,3-thiazines consisting in reaction of 2,6-dimethyl-4-chloronicotinoyl isothiocyanate with primary or secondary amines, or with benzaldehyde phenylhydrazone, is described. High reactivity of the chlorine atom does not allow isolation of the corresponding thioureas, arising as intermediates, except in the case of the benzylamino derivative. Structure of the products was unequivocally confirmed by their spectral data (IR, UV, 1H NMR, 13C NMR and mass spectra). The synthesized derivatives do not undergo the Dimroth rearrangement.

Some 1-substitution derivatives of 4-aryl-2,3-dihalogeno-1-naphthols

1984 ◽  
Vol 49 (1) ◽  
pp. 110-121 ◽  
Author(s):  
Jiří Křepelka ◽  
Drahuše Vlčková ◽  
Milan Mělka
Keyword(s):  
Thionyl Chloride ◽  
Oxirane Ring ◽  
Secondary Amines ◽  
Two Phase ◽  
Lytic Effect ◽  
Primary And Secondary Amines ◽  
Phase Medium ◽  
Chloro Derivatives ◽  
Derivatives Of

Alkylation of derivatives of 4-aryl-1-naphthols (I-V) by 2,3-epoxypropyl chloride in methanolic sodium hydroxide gave epoxy derivatives VI, VIII, IX, XI and XII, apart from products of cleavage of the oxirane ring, VII and X. Analogous alkylation of compounds I, IV and V by 2-(N,N-diethylamino)ethyl chloride hydrochloride in a two-phase medium afforded basic ethers XIII to XV. The cleavage of the oxirane ring in compound VI by the action of primary and secondary amines, piperidine and substituted piperazines led to compounds XVI-XXIV. Reaction of thionyl chloride with compounds XXI, XXII and XXIV gave chloro derivatives XXV-XXVII.Exposure of compound XXII to 4-methylbenzenesulfonyl chloride produced compound XXVIII, retaining the secondary alcoholic group. In an antineoplastic screening in vivo none of the compounds prepared had an appreciable activity. Compound XVII, being an analogue of propranolol, was used in the test of isoproterenolic tachycardia, and showed a beta-lytic effect comparable with that of propranol.

ChemInform Abstract: Continuous-Flow Oxidative Cyanation of Primary and Secondary Amines Using Singlet Oxygen.

ChemInform ◽  
2014 ◽  
Vol 45 (30) ◽  
pp. no-no
Author(s):  
Dmitry B. Ushakov ◽  
Kerry Gilmore ◽  
Daniel Kopetzki ◽  
D. Tyler McQuade ◽  
Peter H. Seeberger
Keyword(s):  
Singlet Oxygen ◽  
Continuous Flow ◽  
Secondary Amines ◽  
Primary And Secondary Amines

Catalytic alkyl group exchange reaction of primary and secondary amines

1983 ◽  
Vol 105 (15) ◽  
pp. 5002-5011 ◽  
Author(s):  
Shunichi Murahashi ◽  
Noriaki Yoshimura ◽  
Tatsuo Tsumiyama ◽  
Takeyuki Kojima
Keyword(s):  
Exchange Reaction ◽  
Alkyl Group ◽  
Secondary Amines ◽  
Primary And Secondary Amines

Gold(III) catalyzed oxidation of sulfides to sulfoxides by nitric acid under phase-transfer conditions: a new synthesis of sulfoxides

Tetrahedron ◽  
1983 ◽  
Vol 39 (19) ◽  
pp. 3181-3184 ◽  
Author(s):  
F. Gasparrini ◽  
M. Giovannoli ◽  
D. Misiti ◽  
G. Natile ◽  
G. Palmieri
Keyword(s):  
Nitric Acid ◽  
Phase Transfer ◽  
Oxidation Of Sulfides ◽  
New Synthesis ◽  
Catalyzed Oxidation

Direct amidation of carboxylic acids with amines under microwave irradiation using silica gel as a solid support

2015 ◽  
Vol 17 (5) ◽  
pp. 3157-3163 ◽  
Author(s):  
Andrea Ojeda-Porras ◽  
Alejandra Hernández-Santana ◽  
Diego Gamba-Sánchez
Keyword(s):  
Fatty Acids ◽  
Microwave Irradiation ◽  
Carboxylic Acids ◽  
Silica Gel ◽  
Solid Support ◽  
Secondary Amines ◽  
Primary And Secondary Amines ◽  
Direct Amidation

A highly improved methodology for the direct amidation of carboxylic acids with amines using silica gel as a solid support and catalyst is described. Several examples using aliphatic, aromatic, unsaturated and fatty acids combined with primary and secondary amines are shown.

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