摘要:
The present disclosure generally relates to a process for hydroboration of an alkene or alkyne using ammonia borane (AB). In particular, the present invention relates to hydroboration of an alkene or alkyne in the presence of air or moisture, and a clean process for facile preparation of an alcohol by oxidizing the organoborane so formed with hydrogen peroxide. The products, including aminodialkylboranes, ammonia trialkylborane complexes, as well as various alcohols so prepared, are within the scope of this disclosure.
摘要:
Sandalwood perfuming ingredients that are 2-[perhydro-trialkyl-2-naphthalenylidene]-1-propanol or propanal derivatives of the formula wherein one dotted line represents a carbon-carbon single bond and the other a carbon-carbon single bond or double bond; X represents a CH2OH group or a CHO group; each R1 represents a hydrogen atom or a methyl group; and the R2, taken separately, represent each a hydrogen atom or the two R2 groups, taken together, represent a CH2 group or a carbon-carbon double bond; and said compound is in the form of any one of its stereoisomers or a mixture thereof, along with the use of such compound(s) in perfuming compositions or articles in the perfumery industry.
摘要:
The invention relates to novel odorants derived from formylpinane. In particular, these are compounds of the formula ##STR1## in which R represents H or C--C alkyl, for example methyl, ethyl, propyl, butyl etc., preferably methyl or ethyl, preferably methyl or ethyl, n represents 0 or 1 and the notation represents a single or double bond I.
摘要:
The present invention concerns compounds of the formula ##STR1## wherein n=1, 2 or 3; and R' represents phenyl or orthofluorophenyl. Said compounds are used as intermediates in the preparation of heterocyclic aminoalkyl derivatives which are useful as analgesics and antidepressants.
摘要:
Described for use in augmenting or enhancing the organoleptic properties of foodstuffs, chewing gums, toothpastes, medicinal products, tobaccos, perfumes and perfumed articles are one or more hydroxy alkenyl norbornane derivatives having one of the structures: ##STR1##
摘要:
Compounds are provided having the structure ##STR1## wherein n is 1, 2 or 3, m is 0, 1 or 2, R.sub.1 R.sub.2, R.sub.3, R.sub.4 and R.sub.5 may be the same or different and can be hydrogen, lower alkyl, halo-lower alkyl, acyl, lower alkoxy-carbonyl ##STR2## amido ##STR3## or lower alkoxylakylene, X is a straight or branched bivalent aliphatic radical and Y is ##STR4## These compounds are useful in the treatment of hypertension.
摘要:
METAL TRIORGANOBORANE ALCOHOLATE COMPOUNDS ARE FORMED BY REACTING TRIORGANOBORANNE COMPOUNDS WITH CARBON MONOXIDE AND A COMPLEX METAL HYDRIDE AT MODERATE CONDITIONS OF TEMPERATURE AND PRESSURE. THE ALCOHOLATE COMPOUNDS CAN SUBSEQUENTLY BE CONVERTED TO ALCOHOLS AND ALDEHYDES. ALCOHOLS ARE FORMED BY HYDROLYZING THE ALCOHOLATE COMPOUND IN A BASIC MEDIUM. ALDEHYDES ARE SECURED BY OXIDIZING THE ALCOHOLATE COMPOUND.