14002-21-2Relevant articles and documents
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Alexander,Underhill
, p. 4014 - 4019 (1949)
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A quick procedure for the preparation of 1-N,N-dialkylamino-1-buten-3-ynes
Brandsma,Verkruijsse
, p. 807 - 810 (1991)
1-N,N-Dialkylamino-1-buten-3-ynes, HC≡CCH=CHNR2 (R = CH3 or C2H5, E/Z ratio ~97:3) have been prepared in 80 and 84% yields by treating the Mannich-coupling products from HC≡CCH2OCH3 and R2NCH2OH, CH3OCH2C≡CCH2NR2, with two equivalents of potassium amide in liquid ammonia and subsequently adding methanol or ammonium chloride.
Volatile precursors for deposition of metals and metal-containing films
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, (2008/06/13)
This invention is directed to a group of novel homologous eight membered ring compounds having a metal, such as copper, reversibly bound in the ring and containing carbon, nitrogen, silicon and/or other metals. A structural representation of the compounds of this invention is shown below: wherein M and M′ are each a metal such as Cu, Ag, Au and Ir; X and X′ can be N or O; Y and Y′ can be Si, C; Sn, Ge, Al, or B; and Z and Z′ can be C, N, or O. Substituents represented by R1, R2, R3, R4, R5, R6, R1′, R2′, R3′, R4′, R5′, and R6′ will vary depending on the ring atom to which they are attached. This invention is also directed to depositing metal and metal-containing films on a substrate, under ALD or CVD conditions, using the above novel compounds as precursors.
Aminomethylation of tocopherols
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Example 3, (2010/01/30)
A process for the production of a Mannich reagent comprises reacting formaldehyde, especially paraformaldehyde, with a secondary amine in the complete or almost complete absence of a solvent. An alternative comprises reacting a diaminomethane produced from a secondary amine, formaldehyde, especially paraformaldehyde, as well as water with one another in about equimolar amounts. The invention is also concerned with a process for the aminomethylation of δ-tocopherol or of tocopherol mixtures containing this and comprises using a Mannich reagent which has been produced in the above manner. After completion of this aminomethylation process excess Mannich reagent can be separated by distillation and can be reacted with water and formaldehyde, especially paraformaldehyde, in order to regenerate further Mannich reagent suitable for use in the aminomethylation, this regeneration representing a further aspect of the invention. Finally, the invention includes certain novel bis(aminomethyl)-γ-tocopherols.