摘要:
A process for the preparation of terminally substituted cyanocompounds from 1-alkenes. The process involves the preparation of a 1-bromoalkane from the reaction of the 1-alkene and HBr in the presence of an initiator followed by a catalyzed halogen exchange reaction with HC1 wherein a 1-chloroalkane is formed and HBr is regenerated. The 1-chloroalkane is then reacted with a cyanide containing compound in the presence of an organic quaternary salt catalyst to produce the desired terminally substituted cyanocompound, a 1-cyanoalkane.
摘要:
Alkylene nitriles having the formula X-CH2-CHR-CN may be purified by distillation by maintaining a concentration of 1 to 5 mol percent of CH2 CRCN in the distillation zone during the distillation. R may be hydrogen or a lower alkyl and X a chloro-, iodo- or bromo-group.
摘要:
A PROCESS FOR THE PRODUCTION OF 1:1 ADDUCTS OF CARBON TETRACHLORIDE OR CHLOROFORM WITH OLEFINICALLY UNSATURATED COMPOUNDS IN THE PRESENCE OF IRON OR COPPER COMPOUND CATAYLST, WHICH ARE AT LEAST PARTIALLY IN REDUCED VALENCE STATES.
摘要:
1. A PROCESS FOR CATALYTICALLY PRODUCING ORGANIC CYANIDES BY REACTING IN A TWO-PHASE LIQUID REACTION SYSTEM (1) AN AQUEOUS PHASE OF AN AQUEOUS SOLUTION OF AN INORGANIC CYANIDE SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL CYANIDES, ALKALINE EARTH METAL CYANIDES, AND MIXTURES THEREOF, WITH (2) AN ORGANIC PHASE OF AN ORGANIC HALIDE DEFINED BY THE FORMULA RCH2X WHEREIN X IS CHLORINE, BROMINE OR IODINE; AND R IS HYDROGEN; A HALOGEN SUCH AS CHLORINE, BROMINE OR IODINE;
A R''-PHENYL
RADICAL WHEREIN R'' IS HYDROGEN, A C1-C12 ALKYL GROUP, A C1-C12 ALKENYL GROUP, OR A
X-(CH2)N-
GROUP WHEREIN N IS AN INTEGER OF 1 TO 12 AND X IS DEFINED ABOVE; AN ALKYL RADICAL HAVING 1 TO 30 CARBON ATOMS; AN ALKENYL RADICAL HAVING 2 TO 30 CARBON ATOMS; A -R"CR3"'' RADICAL WHEREIN R" IS A DIVALENT SATURATED OR UNSATURATED ALIPHATIC HYDROCARBON GROUP HAVING 1 TO 30 CARBON ATOMS AND EACH R"'' IS HYDROGEN, CHLORINE, BROMINE OR IODINE;
A R''-OOC-(R")A-
RADICAL WHEREIN "A" IS 0 OR 1 AND R" AND R'' ARE AS DEFINED ABOVE; A R''-OOC-CH(-COO-R'')-(R")A-
RADICAL WHEREIN R", "A" AND EACH R'' ARE AS DEFINED ABOVE;
A R''-COO-(R")A-
RADICAL WHEREIN R", "a" AND R'' ARE AS DEFINED ABOVE;
A R""-COO-(R")A-
RADICAL WHEREIN R" AND "A" ARE AS DEFINED ABOVE AND R"" IS A C1-C12 ALKYL GROUP, A PHENYL GROUP OR A PHENYL-SUBSTITUTED C1-C12 ALKYL GROUP; OR
A R""''-O-(R")A-
RADICAL WHEREIN R" AND "A" ARE AS DEFINED ABOVE, AND R""'' IS HYDROGEN, PHENYL, OR A SATURATED OR UNSATURATED C1-C30 ALIPHATIC HYDROCARBON GROUP, IN THE PRESENCE OF AT LEAST 0.01 WEIGHT PERCENT BASED ON THE CYANIDE AND HALIDE REACTANTS, OF ACTIVATED CARBON AT NON-DEGRADATIVE TEMPERATURES OF AT LEAST 25* C.
WHEREIN X,X'',X" ARE EACH SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE, IODINE, R IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN OR ALKYL OF FROM 1 TO 5 INCLUSIVE CARBON ATOMS AND N IS AN INTERGER OF FROM 1 TO 2 INCLUSIVE; ARE PREPARED BY REACTING FORMALDEHYDE AND AN ACID, SUCH AS HYDROBROMIC ACID, WITH A DICHLOROCARBENE ADDUCT OF STYRENE. IN THE SECOND PHASE THE HALOMTHYL DERIVATIVES ARE REACTED WITH AN ALKALI METAL CYANIDE TO FORM CYANOMETHYL SUBSTITUTED DERIVATIVES OF THE DIHALOPHENYLCYCLOPROPANES. THE COMPOUNDS, WHICH CONTAIN A HIGH PERCENTAGE OF HALOGEN, ARE USEFUL AS FIRE RETARDANTS FOR PLASTIC MATERIALS SUCH ASS POLYETHYLENE AND, IN ADDITION, THE CYANOMETHYL DERIVATIVES ARE VALUBLE SOIL FUNGICIDES AND HERBICIDES.
摘要:
A METHOD OF PREPARING CYANOCETIC ACID ESTERS BY REACTING HALOGENACETIC ACID ESTERS WITH ALKALI CYANIDE IN A REACTION MEDIUM CONSISTING OF ACETONITRILE.