摘要:
A method for preparing a norbornene structure compound comprises hydrogenating a compound represented by the formula of ##STR1## wherein l, m and n are integers of 0.ltoreq.l.ltoreq.3, 0.ltoreq.m.ltoreq.8 and 1.ltoreq.n.ltoreq.3, respectively, and each of R.sup.1 to R.sup.6 is a hydrogen atom or a hydrocarbon residue having 1 to 3 carbon atoms with or without R.sup.6 forming a ring with R.sup.4 or R.sup.5, in the presence of a Ziegler type catalyst containing in combination a compound of a transition metal of Groups IV to VI of the periodic table and an organometallic compound of Groups I to III of the periodic table, to thereby convert the compound of the formula (1) into a compound represented by the following formula of ##STR2## wherein l, m and n are the same as above.
摘要:
The present invention provides a high-density fuel oil which is suitable for rockets and jet engines and which mainly comprises a tetracyclo (7. 3. 1. O.sup.2,7. 1.sup.7,11) tetradecane derivative represented by the general formula: ##STR1## wherein each of m and n is 0, 1 or 2, and the sum of m and n is 2 or less.
摘要:
A random copolymer comprises recurring units each having the formula of; ##STR1## wherein R.sup.1 to R.sup.10 stand for a hydrogen atom or an alkyl group with or without R.sup.5 being bonded to R.sup.6 or R.sup.10 via an alkylene group having 1 to 3 carbon atoms. The random copolymer contains 50 to 90 mol % of ethylene. The random copolymer has an intrinsic viscosity [.eta.] of 0.3 to 10 dl/g measured in Decalin.RTM., i.e., decahydronphthalene at 30.degree. C.
摘要:
A process for producing oxazolone derivatives, usable as important starting materials for medicines and pesticides, of the following general formula (III) by reacting a compound of the general formula (I) with a compound of the general formula (II) in the presence of an aliphatic tertiary amine: ##STR1## wherein Ar represents an aromatic hydrocarbon residue, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 each represent a hydrogen atom, a halogen atom or an organic residue, R.sup.5 represents a hydrocarbon residue and X represents a halogen atom.
摘要:
Novel peroxide compounds and the use thereof. In particular, the present invention concerns .beta.-hydroxycyclopentylperoxide compounds of the general formula: ##STR1## wherein R.sub.1 represents hydrogen or an organic residue of 1 to 9 carbon atoms. These novel peroxide compounds are useful as an intermediate in the production of glutaraldehydes.
摘要:
The present invention provided a high-density fuel oil comprising an isomerized product prepared by isomerizing an alicyclic saturated hydrocarbon represented by the following formula in the presence of an acid catalyst: ##STR1## wherein each of m and n is 0 or 1, and each of R.sup.1 to R.sup.3 is a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, but the number of the total carbons of R.sup.1 to R.sup.3 is within the range of 1 to 3.
摘要:
A traction drive fluid comprising as a base stock at least one hydrocarbon selected from the group consisting of compounds of the following general formulae (I) to (V) ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3, independently from each other, represent a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, and R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8, R.sup.9 and R.sup.10, independently from each other, represent a hydrogen atom or a methyl group.
摘要:
This invention discloses a tricyclo[2.2.1.0.sup.2,6 ]heptane derivative of the general formula ##STR1## where X represents --CH.sub.2 CH.sub.2 -- or ##STR2## and R.sup.1 and R.sup.2 independently represent hydrogen or methyl, a process for preparing the same, and perfume compositions containing the same.
摘要:
The present invention is connected with a high-density liquid fuel for rockets and jet engines which mainly comprises a compound represented by the general formula ##STR1## wherein each of m and n is 0 or 1, and each of R.sup.1 to R.sup.3 is a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, but a sum of R.sup.1 to R.sup.3 is an integer of 1 to 3.
摘要:
In a braking force control apparatus which controls a braking force applied to a vehicle based on a relation thereof with an obstacle ahead of the vehicle, irrespective of a braking operation of a driver, a lateral force is predicted which can be generated in cases where avoidance steering is carried out by the driver, in order to avoid an obstacle which has been detected, and an actual braking force actually applied to a longitudinal direction of the vehicle is limited in accordance with a braking force which can be applied in the longitudinal direction of the vehicle and which is calculated based on the lateral force thus predicted. According to this, in the braking force control apparatus which controls the braking force of the vehicle, the lateral force for avoiding a collision with the obstacle by means of steering is obtained.