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公开(公告)号:DK140696C
公开(公告)日:1980-05-05
申请号:DK186175
申请日:1975-04-29
Applicant: SNAMPROGETTI S.P.A.
Inventor: RE L , ZAPPELLI P
IPC: C07D473/34 , C07D303/48 , C07F9/6561 , C07H19/207
Abstract: Nicotinamide 6-(2-hydroxy-3-carboxy-propylamino) purine dinucleotide is prepared by reacting nicotinamide-adenine-dinucleotide with 3,4 epoxybutanoic acid in the presence of perchloric acid to prepare an intermediate wherein the adenine nucleus is alkylated in the N1 position. That intermediate is subjected to chemical reduction of the nicotinamide ring, followed by rearrangement to yield the end product wherein the amino group in position 6 of the adenine ring is alkylated.
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公开(公告)号:DE2845843B2
公开(公告)日:1980-04-30
申请号:DE2845843
申请日:1978-10-20
Applicant: SNAMPROGETTI S.P.A., MAILAND (ITALIEN)
Inventor: BIANCINI, BRUNO , CACIAGLI, VALERIO , ELETTI, BIANCHI, GIANCARLO , (ITALIEN)
IPC: C07D307/60 , A23L1/226 , A61K7/46
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公开(公告)号:DE2621076B2
公开(公告)日:1980-04-17
申请号:DE2621076
申请日:1976-05-12
Applicant: SNAMPROGETTI S.P.A., MAILAND (ITALIEN)
Inventor: CECERE, FRANCESCO , GALLI, GIULIANO , PENNA, GINO DELLA , RAPPUOLI, BRUNO, ROM
IPC: C07C227/26 , C07C67/00 , C07C227/00 , C07C227/18 , C07C227/20 , C07C227/32 , C07C229/36 , C07C229/40 , C07C273/18 , C07C275/24 , C12P13/04 , C12P41/00 , C07C99/08 , C07C99/00 , C07C103/52
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公开(公告)号:DE2359300B2
公开(公告)日:1980-04-17
申请号:DE2359300
申请日:1973-11-28
Applicant: SNAMPROGETTI S.P.A., MAILAND (ITALIEN)
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公开(公告)号:DE2802111B2
公开(公告)日:1979-10-18
申请号:DE2802111
申请日:1978-01-18
Applicant: SNAMPROGETTI S.P.A., MAILAND (ITALIEN)
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公开(公告)号:DE2702423B2
公开(公告)日:1979-09-20
申请号:DE2702423
申请日:1977-01-21
Applicant: SNAMPROGETTI S.P.A., MAILAND (ITALIEN)
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公开(公告)号:DE2363285B2
公开(公告)日:1979-09-20
申请号:DE2363285
申请日:1973-12-19
Applicant: SNAMPROGETTI S.P.A., MAILAND (ITALIEN)
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公开(公告)号:DE2644283B2
公开(公告)日:1979-09-13
申请号:DE2644283
申请日:1976-09-30
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公开(公告)号:DE2757787B2
公开(公告)日:1979-08-16
申请号:DE2757787
申请日:1977-12-23
Applicant: SNAMPROGETTI S.P.A., MAILAND (ITALIEN)
Inventor: GREGORIO, FRANCESCO DI , GULINELLI, SILVIO
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公开(公告)号:DE2521965C3
公开(公告)日:1979-08-09
申请号:DE2521965
申请日:1975-05-16
Applicant: SNAMPROGETTI S.P.A., MAILAND (ITALIEN)
Inventor: RESCALLI, CARLO , GINNASI, ALESSANDRO, DR.
IPC: C07C7/08 , C07C1/00 , C07C7/00 , C07C7/10 , C07C7/148 , C07C11/09 , C07C11/167 , C07C41/06 , C07C67/00 , C07C7/01 , C07C43/04 , C07C43/14
Abstract: The present invention is directed to a process for the separation of butadiene from a stream-cracked C4 hydrocarbon stream by a sequential etherification of isobutylene and the acetylenic compounds that is followed by a distillation step.
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