Provided herein is a compound of formula (I): ##STR00001##
wherein each R is independently selected from the group consisting of C.sub.1-8 alkyl, C.sub.1-8 heteroalkyl having 1-4 heteroatoms independently selected from N, O, and S, C.sub.3-6 cycloalkyl, 3-10 membered heterocycloalkyl having 1-4 heteroatoms independently selected from N, O, and S, C.sub.6-10 aryl, and 5-10 membered heteroaryl having 1-4 heteroatoms independently selected from N, O, and S; each X is independently selected from OH, PAr.sub.2, P(O)Ar.sub.2, OPAr.sub.2, C.sub.3-6 cycloalkyl, 3-10 membered heterocycloalkyl having 1-4 heteroatoms independently selected from N, O, and S or each X together form O.sub.2PNR.sub.2; Ar is C.sub.6-10aryl; and each R is independently selected from hydrogen and C.sub.1-8 alkyl. Also provided are methods of making and using the compound of formula (I).

Provided herein is a compound of formula (I): ##STR00001##
wherein each R is independently selected from the group consisting of C.sub.1-8 alkyl, C.sub.1-8 heteroalkyl having 1-4 heteroatoms independently selected from N, O, and S, C.sub.3-6 cycloalkyl, 3-10 membered heterocycloalkyl having 1-4 heteroatoms independently selected from N, O, and S, C.sub.6-10 aryl, and 5-10 membered heteroaryl having 1-4 heteroatoms independently selected from N, O, and S; each X is independently selected from OH, PAr.sub.2, P(O)Ar.sub.2, OPAr.sub.2, C.sub.3-6 cycloalkyl, 3-10 membered heterocycloalkyl having 1-4 heteroatoms independently selected from N, O, and S or each X together form O.sub.2PNR.sub.2; Ar is C.sub.6-10aryl; and each R is independently selected from hydrogen and C.sub.1-8 alkyl. Also provided are methods of making and using the compound of formula (I).

A process for the preparation of a class of molecules, namely bicyclo[1.1.1]pentanes and derivatives thereof by reaction of [1.1.1]propellane with a variety of reagents under irradiation and/or in the presence of radical initiators to obtain bicyclo[1.1.1]pentanes asymmetrically substituted at position 1 and 3, which are useful as intermediates for the preparation of asymmetrically 1,3-disubstituted bicyclo[1.1.1]pentane derivatives and various physiologically active substances or materials containing these structures.

A process for the preparation of a class of molecules, namely bicyclo[1.1.1]pentanes and derivatives thereof by reaction of [1.1.1]propellane with a variety of reagents under irradiation and/or in the presence of radical initiators to obtain bicyclo[1.1.1]pentanes asymmetrically substituted at position 1 and 3, which are useful as intermediates for the preparation of asymmetrically 1,3-disubstituted bicyclo[1.1.1]pentane derivatives and various physiologically active substances or materials containing these structures.

Provided is a method for producing a cyclic olefin compound, including a step of producing a cyclic olefin compound by acting a divalent nickel complex represented by General Formula (1) to decarbonylate and decarboxylate an alicyclic dicarboxylic acid anhydride, in which the divalent nickel complex includes at least one specific anionic ligand Y:
Ni(Y).sub.m(L).sub.n(1) wherein Ni is divalent nickel, Y is an anionic monodentate or polydentate ligand and has at least one Ni-E covalent bond, E is a heteroatom or a n-bonding group, m is 1 or 2, L is a neutral ligand, and n is a real number of 0 to 6.

Provided is a method for producing a cyclic olefin compound, including a step of producing a cyclic olefin compound by acting a divalent nickel complex represented by General Formula (1) to decarbonylate and decarboxylate an alicyclic dicarboxylic acid anhydride, in which the divalent nickel complex includes at least one specific anionic ligand Y:
Ni(Y).sub.m(L).sub.n(1) wherein Ni is divalent nickel, Y is an anionic monodentate or polydentate ligand and has at least one Ni-E covalent bond, E is a heteroatom or a n-bonding group, m is 1 or 2, L is a neutral ligand, and n is a real number of 0 to 6.

A process for making high density fuels having the potential to increase the range and/or loiter time of Navy platforms. Derivation of these fuels from a sustainable source will decrease the carbon footprint of the Department of Defense (DoD) and reduce reliance on nonsustainable petroleum sources. Fuels based on ziza-anes have volumetric net heats of combustion up to ca. 18% higher than conventional Navy jet fuel (JP-5). Moreover, ziza-anes can be generated from sustainable biomass sugars via fermentation.

A process for making high density fuels having the potential to increase the range and/or loiter time of Navy platforms. Derivation of these fuels from a sustainable source will decrease the carbon footprint of the Department of Defense (DoD) and reduce reliance on nonsustainable petroleum sources. Fuels based on ziza-anes have volumetric net heats of combustion up to ca. 18% higher than conventional Navy jet fuel (JP-5). Moreover, ziza-anes can be generated from sustainable biomass sugars via fermentation.

A process for the preparation of a class of molecules, namely bicyclo[1.1.1]pentanes and derivatives thereof by reaction of [1.1.1]propellane with a variety of reagents under irradiation and/or in the presence of radical initiators to obtain bicyclo[1.1.1]pentanes asymmetrically substituted at position 1 and 3, which are useful as intermediates for the preparation of asymmetrically 1,3-disubstituted bicyclo[1.1.1]pentane derivatives and various physiologically active substances or materials containing these structures.

A process for the preparation of a class of molecules, namely bicyclo[1.1.1]pentanes and derivatives thereof by reaction of [1.1.1]propellane with a variety of reagents under irradiation and/or in the presence of radical initiators to obtain bicyclo[1.1.1]pentanes asymmetrically substituted at position 1 and 3, which are useful as intermediates for the preparation of asymmetrically 1,3-disubstituted bicyclo[1.1.1]pentane derivatives and various physiologically active substances or materials containing these structures.