Patent classifications
C07C45/44
Propellane derivates and synthesis
Disclosed herein are compounds of the general Formula (I), and methods of synthesizing substituted bicyclo[1.1.1 jpentanes. The synthetic methods described herein use a [1.1.1]propellane, a Group VIII transition metal compound, a hydride source and a reagent that can contribute a substituent to form a substituted bicyclo[1.1.1]pentane, such as a compound of the general Formula (I).
Propellane derivates and synthesis
Disclosed herein are compounds of the general Formula (I), and methods of synthesizing substituted bicyclo[1.1.1 jpentanes. The synthetic methods described herein use a [1.1.1]propellane, a Group VIII transition metal compound, a hydride source and a reagent that can contribute a substituent to form a substituted bicyclo[1.1.1]pentane, such as a compound of the general Formula (I).
Propellane derivates and synthesis
Disclosed herein are compounds of the general Formula (I), and methods of synthesizing substituted bicyclo[1.1.1 jpentanes. The synthetic methods described herein use a [1.1.1]propellane, a Group VIII transition metal compound, a hydride source and a reagent that can contribute a substituent to form a substituted bicyclo[1.1.1]pentane, such as a compound of the general Formula (I).
SYSTEMS AND METHODS FOR PREPARATION OF HIGHLY REACTIVE ALKALI METAL DENDRITES FOR THE SYNTHESIS OF ORGANOLITHIUM REAGENTS
Systems and methods for formation of highly reactive alkali dendrites are provided. For example, in some embodiments alkali metals are dissolved in ammonia to form metal electrides after which the ammonia is removed via vacuum to reveal highly activated metal surfaces in the form of crystalline alkali dendrites. The alkali dendrites can mimic powders but have the advantage of being freshly prepared from inexpensive and readily available metal sources. These uniquely activated metals exhibit enhanced reactivity comparatively to similar off the shelf sources of the corresponding metals. For example, the dendrites can have about 100 times greater surface area than conventional metal sources and/or be about 19 times more reactive than powders that serve as the industry standard for the preparation of organometallic compounds. After surface activation, these metals can be used to prepare various organometallic reagents.
SYSTEMS AND METHODS FOR PREPARATION OF HIGHLY REACTIVE ALKALI METAL DENDRITES FOR THE SYNTHESIS OF ORGANOLITHIUM REAGENTS
Systems and methods for formation of highly reactive alkali dendrites are provided. For example, in some embodiments alkali metals are dissolved in ammonia to form metal electrides after which the ammonia is removed via vacuum to reveal highly activated metal surfaces in the form of crystalline alkali dendrites. The alkali dendrites can mimic powders but have the advantage of being freshly prepared from inexpensive and readily available metal sources. These uniquely activated metals exhibit enhanced reactivity comparatively to similar off the shelf sources of the corresponding metals. For example, the dendrites can have about 100 times greater surface area than conventional metal sources and/or be about 19 times more reactive than powders that serve as the industry standard for the preparation of organometallic compounds. After surface activation, these metals can be used to prepare various organometallic reagents.
PROCESS FOR THE PREPARATION OF HU-910 AND CRYSTALLINE STRUCTURE THEREOF
The invention provides processes for the preparation of HU-910, which are scalable to industrial purposes, using safer reagents and having high yield and pure product and a crystalline structure of HU-910, which is a unique product thereof.
PROCESS FOR THE PREPARATION OF HU-910 AND CRYSTALLINE STRUCTURE THEREOF
The invention provides processes for the preparation of HU-910, which are scalable to industrial purposes, using safer reagents and having high yield and pure product and a crystalline structure of HU-910, which is a unique product thereof.
Cyclobenzoins
One-step cyanide-catalyzed benzoin condensations for synthesizing shape persistent cyclobenzoin macrocycles. Selected dialdehydes, and cyanide salts are reacted in aqueous solvents to form such cyclobenzoin macrocycles.
Cyclobenzoins
One-step cyanide-catalyzed benzoin condensations for synthesizing shape persistent cyclobenzoin macrocycles. Selected dialdehydes, and cyanide salts are reacted in aqueous solvents to form such cyclobenzoin macrocycles.
Cyclobenzoins
One-step cyanide-catalyzed benzoin condensations for synthesizing shape persistent cyclobenzoin macrocycles. Selected dialdehydes, and cyanide salts are reacted in aqueous solvents to form such cyclobenzoin macrocycles.