Abstract:
Degradable isocyanate compounds, methods for making these compounds, and uses of these compounds for preparing degradable cross-linked polymers and composite materials are provided.
Abstract:
The present invention relates to a process for the production of isocyanates, preferably diisocyanates and polyisocyanates of the diphenylmethane series (MDI), by reacting an amine with phosgene in the liquid phase or in the gas phase to form the corresponding isocyanates, subsequent removal of the solvent in at least two steps to obtain at least two solvent streams, individual treatment of the at least two solvent streams, and recirculation of at least a portion of the solvent streams.
Abstract:
Gegenstand der Erfindung ist ein Verfahren zur Herstellung von Isocyanaten durch Umsetzung der entsprechenden Amine mit Phosgen in Anwesenheit von Lösungsmitteln, dadurch gekennzeichnet, dass als Lösungsmittel solche Verbindungen eingesetzt werden, die mit Chlorwasserstoff Salzschmelzen bilden.
Abstract:
In one embodiment, this invention provides a class of androgen receptor targeting agents (ARTA). The agents define a new subclass of compounds, which are selective androgen receptor modulators (SARM). The SARM compounds have unexpected antiandrogenic activity of a nonsteroidal ligand for the androgen receptor. In one embodiment, the SARM compounds bind irreversibly to the androgen receptor. In another embodiment, the SARM compounds are androgen receptor antagonists which bind irreversibly to the androgen receptor. In another embodiment, the SARM compounds are alkylating agents. The SARM compounds, either alone or as a composition, are useful for a) male contraception; b) treatment of a variety of hormone-related conditions, for example conditions associated with Androgen Decline in Aging Male (ADAM), such as fatigue, depression, decreased libido, sexual dysfunction, erectile dysfunction, hypogonadism, osteoporosis, hair loss, anemia, obesity, sarcopenia, osteopenia, osteoporosis, benign prostate hyperplasia, alterations in mood and cognition and prostate cancer; c) treatment of conditions associated with Androgen Decline in Female (ADIF), such as sexual dysfunction, decreased sexual libido, hypogonadism, sarcopenia, osteopenia, osteoporosis, alterations in cognition and mood, depression, anemia, hair loss, obesity, endometriosis, breast cancer, uterine cancer and ovarian cancer; d) treatment and/or prevention of acute and/or chronic muscular wasting conditions; e) preventing and/or treating dry eye conditions; f) oral androgen replacement therapy; g) decreasing the incidence of, halting or causing a regression of prostate cancer; and/or h) inducing apoptosis in a cancer cell.
Abstract:
Method for the preparation of polymeric isocyanates by decomposing polymeric ureas of the formula: R (NHCONR R )x wherein x is at least 2, R is an organic radical of valency x and R and R are monovalent organic radicals, into polymeric isocyanates of the formula: R (NCO)x and secondary amines of the formula: R NHR characterised in that at least one of the radicals R and R is bound to the nitrogen atom of the amine by a tertiary carbon atom.
Abstract translation:通过分解式R 1(NHCONR 2 R 3)x的聚合物脲,其中x至少为2,R 1是化合价x和R的有机基团来制备聚合异氰酸酯的方法 R 2和R 3是一价有机基团,转化为下式的聚合异氰酸酯:R 1(NCO)x和下式:R 2 NHR 3的仲胺,其特征在于,至少一种 基团R 2和R 3通过叔碳原子与胺的氮原子结合。
Abstract:
The invention relates to novel hydroximic acid derivatives of formula (I) and their salts, wherein X = O, S; Y = O, S; R = H, C1-C4-alkyl, NH2, C1-C4-alkylamino or di(C1-C4-alkyl)amino; R = C1-C3-halogenalkyl; R = H, halogen, C1-C4-alkyl; R = H, halogen; R = CN, halogen; R = C1-C6-alkyl, C2-C6-alkenyl, C3-C6-alkinyl or phenyl-C1-C6-alkyl, wherein the phenyl ring of this group can be unsubstituted or can carry 1-3 substituents; R = a C1-C6-alkyl, C2-C6-alkenyl, C3-C6-alkinyl or phenyl-C1-C6-alkyl group, wherein these four groups can be unsubstituted or can carry one or two substituents. The inventive derivatives can be used as herbicides, and in dessication/defoliation of plants.
Abstract:
The present invention is directed towards a process for the preparation of free isocyanates, which improves upon the disadvantages associated with heterogeneous catalysis. The process comprises converting formamides into the corresponding isocyanates via a catalytic dehydrogenation, which involves bringing the formamide into contact with a Group VII, VIII or IX transition metal complex and heating.