1,2,3,4,4A,5,7,7A-Octahydrothieno[3,4-b]pyrazines 6,6-dioxides
AssigneeUniroyal, Inc.
InventorsWalter Nudenberg, Edward L. Hagen, Julian R. Little, Chung-Ling Mao
Life of this patent
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Abstract
Disclosed are new chemical compounds namely 1,4-dialkanols of octahydrothieno[3,4-b]pyrazine 6,6-dioxides and 4-alkanols of octahydrothieno[3,4-b]pyrazine 6,6-dioxides, the use of such compounds in the production of polyurethanes, and methods of making such compounds.
Claims24
A compound having the formula:
- ##EQU8## wherein R.sub.1 and R.sub.5 are the same or different and each represents a hydrogen atom, alkyl group having 1 to 10 carbon atoms, phenyl, hydroxymethyl, alkoxymethyl group having 2 to 7 carbon atoms, dimethoxymethyl, diethoxyethyl, tetrahydropyranoxymethyl, phenoxymethyl, o-, m-, p-toloxymethyl, o, m-, p-allylphenoxymethyl, o-, m-, p-chlorophenoxymethyl, .beta.-cyanoethoxymethyl or sulfolanylmethyl group, R.sub.2 and R.sub.4 are the same or different and each represents a hydrogen atom, or lower alkyl group having 1 to 5 carbon atoms, R.sub.1 together with R.sub.2 or R.sub.4 together with R.sub.5 constitute a cyclohexylene group, R.sub.3 is a hydrogen atom or methyl group, and R.sub.6 and R.sub.7 represent a hydrogen atom or methyl group.
A compound having the formula:
- ##EQU9## wherein R.sub.1 is a hydrogen atom, alkyl group having 1 to 10 carbon atoms, phenyl, hydroxymethyl, alkoxymethyl group having 2 to 7 carbon atoms, dimethoxymethyl, diethoxyethyl, tetrahydropyranoxymethyl, phenoxymethyl, o-, m-, p-toloxymethyl, o-, m-, p-allylphenoxymethyl, o-, m-, p-chlorophenoxymethyl, .beta.-cyanoethoxymethyl or sulfolanylmethyl group, R.sub.2 is a hydrogen atom or lower alkyl group having 1 to 5 carbon atoms, R.sub.1 together with R.sub.2 constitute a cyclohexylene group, R.sub.3 is a hydrogen atom or methyl group, and R.sub.7 is a hydrogen atom or methyl group.
1,2,3,4,4a,5,7,7a-octahydrothieno[3,4-b]pyrazine-1,4-diethanol 6,6-dioxide.
1,2,3,4,4a ,5,7,7a-octahydrothieno[3,4-b]pyrazine-1,4-bis(.alpha.-methylethanol) 6,6-dioxide.
1,2,3,4,4a ,5,7,7a-octahydrothieno[3,4-b]pyrazine-1,4-bis(.alpha.,.alpha.-dimethyletha nol) 6,6-dioxide.
1,2,3,4,4a,5,7 ,7a-octahydrothieno[3,4-b]pyrazine-1,4-bis(.alpha.-hydroxymethylethanol) 6,6-dioxide.
1,2,3,4,4a ,5,7,7a-octahydrothieno[3,4-b]pyrazine-1,4-bis(2-hydroxypropionaldehydedime thylacetal) 6,6-dioxide.
1,2,3,4,4a,5,7,7a-oct ahydrothieno[3,4-b]pyrazine-1,4-bis(3-methoxy-2-propanol) 6,6-dioxide.
1,2,3,4,4a,5,7,7a-octahydro-2-methylthieno[3,4-b]pyrazine-1,4-diethanol 6,6-dioxide.
1,2,3,4,4 a,5,7,7a-octahydro-2-methylthieno[3,4-b]pyrazine-1,4-bis(.alpha.-methyletha nol) 6,6-dioxide.
1,2,3,4,4a,5, 7,7a-octahydro-2-methylthieno[3,4-b]pyrazine-1,4-bis(2-hydroxypropionaldehy dedimethylacetal) 6,6-dioxide.
3,3'-[1,2,3,4,4a-5,7,7a-oc tahydro-2-methylthieno[3,4-b]pyrazine-1,4-bis[3"-(2-hydroxypropoxy)propioni trile]] 6,6-dioxide.
1,2,3,4,4a-5,7,7 a-octahydrothieno[3,4-b]pyrazine-1,4-bis(.alpha.-hexylethanol) 6,6-dioxide.
1,2,3,4,4a-5,7,7a-octahydrothieno[3,4-b]pyrazine-1,4-bis(2-cyclohexanol ) 6,6-dioxide.
1,2,3,4,4a -5,7,7a-octahydrothieno[3,4-b]pyrazine-1,4-bis(.alpha.,.beta.-dimethylethan ol) 6,6-dioxide.
1,2,3,4,4a-5 ,7,7a-octahydrothieno[3,4-b]pyrazine-1,4-bis(.alpha.-vinylethanol) 6,6-dioxide.
1,2,3,4,4 a-5,7,7a-octahydrothieno[3,4-b]pyrazine-1,4-bis(.alpha.-ethylethanol) 6,6-dioxide.
1,2,3,4,4 a-5,7,7a-octahydrothieno[3,4-b]pyrazine-1-ethanol-4-(.alpha.-methylethanol) 6,6-dioxide.
1,2,3,4,4 a-5,7,7a-octahydro-2-methylthieno[3,4-b]pyrazine-1-ethanol-4-(.alpha.-hexyl ethanol) 6,6-dioxide.
1,2,3,4,4a-5,7,7a -octahydro-2-methylthieno[3,4-b]pyrazine-1-(.alpha.-methylethanol)-4-(.beta .-methyl-.alpha.-tetrahydro-1,1-dioxo-2-thenyl)ethanol 6,6-dioxide.
1,2,3,4,4a,5,7,7a-octahydro-2-methylthieno[3,4-b]pyrazine-4-(.a lpha.-methylethanol) 6,6-dioxide.
1,2,3,4,4a,5,7,7a-octahydro-2 -methylthieno[3,4-b]pyrazine-4-(.alpha.-hexylethanol) 6,6-dioxide.
1,2,3,4,4a,5,7,7a-octahydrothieno[3,4-b]pyrazine-1,4-bis(.alph a.-phenylethanol) 6,6-dioxide.
1,2,3,4,4a,5,7,7a-octahydr o-2-methylthieno[3,4-]-pyrazine-4-(.beta.-methyl-.alpha.-tetrahydro-1,1-dio xo-2-thenyl)ethanol 6,6-dioxide.
Dependencies are inferred from the claim text.