公开(公告)号：US5861354A

公开(公告)日：1999-01-19

申请号：US642376

申请日：1996-05-03

Applicant: Clyde Neal Clubb ,  Thomas James Devon ,  Garrett Clements Luce

Inventor： Clyde Neal Clubb ,  Thomas James Devon ,  Garrett Clements Luce

IPC: B01J31/04 ,  B01J21/10 ,  B01J35/12 ,  C07C67/44 ,  C07C69/675 ,  B01J23/02 ,  B01J31/00

CPC classification number: C07C67/44 ,  Y10S502/512

Abstract: A catalyst and process for preparation of dihydroxy esters from specified hydroxy aldehydes is disclosed. In one embodiment, a catalyst liquid is provided which comprises from 10 percent to 60 percent magnesium salt of a specified alkanoic acid or acids, and from 90 percent to 40 percent of a particular alkanoic acid or acids, the molar ratio of alkanoic acid to magnesium salt being from about 1.5 to 20.3. The catalyst solution or liquid contacts or is contacted with a specified hydroxy aldehyde under suitable reaction conditions to form the desired dihydroxy ester. In another embodiment, dihydroxy esters are derived from specified hydroxy aldehydes by first forming a magnesium catalyst containing liquid by reacting magnesium or magnesium oxide, under suitable conditions, with a suitable alkanoic acid or acids, the acid or acids being provided in excess in specified molar ratios. The magnesium salt-alkanoic acid liquid produced is then employed as a catalyst liquid to convert the respective hydroxy aldehyde under suitable reaction conditions to form the desired dihydroxy ester.

Abstract translation: 公开了一种用于由特定羟基醛制备二羟基酯的催化剂和方法。 在一个实施方案中，提供了催化剂液体，其包含10％至60％的特定链烷酸或酸的镁盐和90％至40％的特定链烷酸或酸，链烷酸与镁的摩尔比 盐约为1.5至20.3。 催化剂溶液或液体在合适的反应条件下与特定的羟基醛接触或接触以形成所需的二羟基酯。 在另一个实施方案中，二羟基酯衍生自特定的羟基醛，首先通过在合适的条件下使镁或氧化镁与合适的链烷酸或酸反应而形成含有液体的镁催化剂，酸或酸以规定的摩尔数过量提供 比率。 然后将所生产的镁盐 - 链烷酸液体用作催化剂液体，以​​在合适的反应条件下转化相应的羟基醛以形成所需的二羟基酯。

公开(公告)号：US20080081931A1

公开(公告)日：2008-04-03

申请号：US11854210

申请日：2007-09-12

Applicant: Thomas Allen Puckette ,  Thomas James Devon

Inventor： Thomas Allen Puckette ,  Thomas James Devon

IPC: C07C45/49

CPC classification number: C07C45/49 ,  C07C45/80 ,  C07C47/19

Abstract: Disclosed are processes for the preparation of glycolaldehyde in which formaldehyde is contacted with carbon monoxide and hydrogen in the presence of a rhodium catalyst and a solvent containing at least one N,N-dihexylbutyramide. The glycolaldehyde product is recovered by extraction with water. The process provides high selectivity to glycolaldehyde and efficient separation of hydroformylation products from the solvent and rhodium catalyst.

Abstract translation: 公开了在铑催化剂和含有至少一种N，N-二己基丁酰胺的溶剂的存在下，甲醛与一氧化碳和氢气接触的方法。 通过用水萃取来回收乙醇醛产物。 该方法为乙二醇提供高选择性，并且有效地从溶剂和铑催化剂中分离加氢甲酰化产物。

公开(公告)号：US07420093B2

公开(公告)日：2008-09-02

申请号：US11854210

申请日：2007-09-12

Applicant: Thomas Allen Puckette ,  Thomas James Devon

Inventor： Thomas Allen Puckette ,  Thomas James Devon

IPC: C07C45/50

CPC classification number: C07C45/49 ,  C07C45/80 ,  C07C47/19

Abstract: Disclosed are processes for the preparation of glycolaldehyde in which formaldehyde is contacted with carbon monoxide and hydrogen in the presence of a rhodium catalyst and a solvent containing at least one N,N-dihexylbutyramide. The glycolaldehyde product is recovered by extraction with water. The process provides high selectivity to glycolaldehyde and efficient separation of hydroformylation products from the solvent and rhodium catalyst.

Abstract translation: 公开了在铑催化剂和含有至少一种N，N-二己基丁酰胺的溶剂的存在下，甲醛与一氧化碳和氢气接触的方法。 通过用水萃取来回收乙醇醛产物。 该方法为乙二醇提供高选择性，并且有效地从溶剂和铑催化剂中分离加氢甲酰化产物。