摘要:
The present invention relates to a process for the preparation of cyclic cis -diamines of formula
wherein Q is selected from the group consisting of -CH 2 -, -CH(CH 3 )-, -C(CH 3 ) 2 -, -(CH 2 ) 2 -, -(CH 2 ) 3 - and -(CH 2 ) 4 -; n is an integer from 0 to 4; and each substituent R, if present, is independently a linear or branched C 1-8 alkyl attached to any one of the depicted carbon atoms; starting from cyclic dienes such as cyclopentadiene and an azodicarboxylic acid derivative such as azodicarboxamide. Also claimed are novel bicyclic hydrazo compounds as intermediates in the process.
摘要:
This invention is directed to processes for the solid-phase synthesis of aldehydes, ketones, oximes, amines and hydroxamic acid compounds and to polymeric hydroxylamine resin compounds useful therefor.
摘要:
Die Erfindung betrifft ein Verfahren zur Herstellung von fluorhaltigen Anilinen ausgehend von den entsprechenden chlorhaltigen Anilinen, sowie die Verwendung der fluorhaltigen Aniline.
摘要:
The chlorine content in chlorinated hydrocarbons in an environment which admits the presence of air and moisture can be reduced by bringing the chlorinated hydrocarbon into contact wih a dechlorination reagent which comprises (i) a complex of a substantially nontoxic metal having at least two oxidation states and (ii) a reducing agent which reductively returns the complex from its second oxidation step to its first oxidation stage. A representative embodiment involves bis-(θ5-cyclopentadienyl)titanium dichloride and sodium tetrahydridoborate.
摘要:
This invention is directed to polymeric hydroxylamine resin compounds and to processes for the solid-phase synthesis of aldehydes, ketones, oximes, amines and hydroxamic acid compounds useful thereof.
摘要:
The invention relates to processes for the preparation of compounds of formula (I), wherein R?1 and R2¿ each independently represent a halogen atom.
摘要:
This invention is directed to polymeric fluorophenyl hydroxylamine resin compounds and to a process for preparing α,β-unsaturated alkenoate resin compounds.
摘要:
This invention is directed to polymeric fluorophenyl hydroxylamine resin compounds and to a process for preparing α,β-unsaturated alkenoate resin compounds.