公开(公告)号：US06723875B1

公开(公告)日：2004-04-20

申请号：US10359121

申请日：2003-02-06

Applicant: Edoardo Pallucca ,  Jacopo Degani ,  Anna Maria Serri ,  Rita Fochi ,  Sonia Gazzetto ,  Claudia Fenoglio ,  Claudio Ornati ,  Mara Migliaccio ,  Silvano Cadamuro ,  Gianni Carvoli

Inventor： Edoardo Pallucca ,  Jacopo Degani ,  Anna Maria Serri ,  Rita Fochi ,  Sonia Gazzetto ,  Claudia Fenoglio ,  Claudio Ornati ,  Mara Migliaccio ,  Silvano Cadamuro ,  Gianni Carvoli

IPC: C07C27300

CPC classification number: C07C273/1809 ,  C07C333/04 ,  C07C333/06 ,  C07C275/04

Abstract: The present invention relates to the preparation of alkyl-ureas, starting from O,S-dimethyl dithiocarbonate, which provides the following steps: A) causing the O,S-dimethyl dithiocarbonate to react with a primary amine of general formula R1NH2 in order to obtain an O-methyl thiocarbamate; B) isomerising the O-methyl thiocarbamate in order to obtain an S-methyl thiocarbamate; C) causing the S-methyl thiocarbamate with a compound of general formula R′R″NH, wherein R′ and R″ may be equal or different one in respect of the other and of R1 and may be H, R2 or R3, in order to obtain one of the alkyl-ureas of formula (4), (5) or (6).

Abstract translation: 本发明涉及从O，S-二甲基二硫代碳酸酯开始制备烷基脲，其提供以下步骤：A）使O，S-二甲基二硫代碳酸酯与通式R 1的伯胺反应， NH 2，以获得O-甲基硫代氨基甲酸酯; B）异构化O-甲基硫代氨基甲酸酯以获得S-甲基硫代氨基甲酸酯; C）用通式R'R''HH的化合物引入S-甲基硫代氨基甲酸酯， 其中R'和R“可以相对于另一个和R 1相同或不同，并且可以是H，R 2或R 3，以获得其中一个烷基 - 脲 式（4），（5）或（6）。

公开(公告)号：US4868322A

公开(公告)日：1989-09-19

申请号：US212135

申请日：1988-06-28

Applicant: Iacopo Degani ,  Rita Fochi ,  Valeria Regondi

Inventor： Iacopo Degani ,  Rita Fochi ,  Valeria Regondi

IPC: C07D277/62 ,  B01J31/00 ,  C07B61/00 ,  C07C67/00 ,  C07C325/00 ,  C07C329/00 ,  C07D277/74

CPC classification number: C07C329/00 ,  C07D277/74

Abstract: A new process is described for the preparation of trithiocarbonic acid esters of formula: ##STR1## in which R and R.sub.1, which can be the same or different, are aliphatic, alicyclic, aromatic or heterocyclic radicals. The new process is characterized in that an organic hydrosulphide and a base, or an inorganic sulphide, are reacted with carbon disulphide and an organic halide in stoichiometric proportions in the absence of organic solvents, in the presence of an aqueous phase and a phase transfer catalyst.

Abstract translation: 描述了用于制备下式的三硫代碳酸酯的新方法：其中R和R 1可以相同或不同，是脂族，脂环族，芳族或杂环基。 新方法的特征在于，在水相和相转移催化剂存在下，有机硫化氢和碱或无机硫化物在无有机溶剂存在下，以化学计量比与二硫化碳和有机卤化物反应 。

公开(公告)号：US4743404A

公开(公告)日：1988-05-10

申请号：US004413

申请日：1987-01-20

Applicant: Margherita Barbero ,  Iacopo Degani ,  Rita Fochi ,  Valeria Regondi

Inventor： Margherita Barbero ,  Iacopo Degani ,  Rita Fochi ,  Valeria Regondi

IPC: C07C309/79 ,  C07C20060101 ,  C07C67/00 ,  C07C301/00 ,  C07C303/02 ,  C07C303/04 ,  C07C303/28 ,  C07C309/00 ,  C07C309/78 ,  C07C309/80 ,  C07C309/81 ,  C07C329/12 ,  C07C329/14 ,  C07C143/70

CPC classification number: C07C309/00 ,  C07C329/00

Abstract: Process for preparing alkyl-sulphonyl chlorides and arylalkyl-sulphonyl chlorides of formula RSO.sub.2 Cl (R being alkyl or arylalkyl), starting from S,S-dialkyl or diarylalkyl dithiocarbonates RS--CO--SR, consisting in reacting the starting compound with gaseous chlorine in the presence of water, at 0.degree.-+10.degree. C.

Abstract translation: 制备式RSO 2 Cl（R为烷基或芳基烷基）的烷基磺酰氯和芳烷基磺酰氯的方法，由S，S-二烷基或二芳基烷基二硫代碳酸酯RS-CO-SR开始，其包括使起始化合物与气态氯在 在0℃-10℃下存在水

公开(公告)号：US4449004A

公开(公告)日：1984-05-15

申请号：US368293

申请日：1982-04-13

Applicant: Iacopo Degani ,  Rita Fochi ,  Valeria Regondi

Inventor： Iacopo Degani ,  Rita Fochi ,  Valeria Regondi

IPC: B01J31/02 ,  C07B61/00 ,  C07C67/00 ,  C07C313/00 ,  C07C319/14 ,  C07C321/14 ,  C07C321/20 ,  C07C321/28 ,  C07C323/09 ,  C07D251/52 ,  C07D277/74 ,  C10M135/20 ,  C10M135/32 ,  C10N30/06 ,  C07C148/00

CPC classification number: C10M135/32 ,  C07C319/14 ,  C07C321/14 ,  C07C321/20 ,  C07C323/09 ,  C07D251/52 ,  C07D277/74 ,  C10M135/20 ,  C10M2207/40 ,  C10M2207/404 ,  C10M2219/082 ,  C10M2219/086 ,  C10M2219/09 ,  C10M2219/10 ,  C10M2219/102 ,  C10M2219/104 ,  C10M2219/106

Abstract: A process for preparing organic thioethers of formula R--S--R.sub.1 in which R is an aliphatic, aryl, arylaliphatic or heterocyclic radical and R.sub.1 is an aliphatic or arylaliphatic radical, from organic dithiocarbonates and organic halides or sulphonates, in the presence of an aqueous alkaline base and a phase transfer catalyst, at a temperature of between 50.degree. and 100.degree. C. for a time of 10-60 minutes.

Abstract translation: 制备式RS-R1的有机硫醚的方法，其中R是脂族，芳基，芳基脂族或杂环基团，R 1是有机二硫代碳酸酯和有机卤化物或磺酸盐在碱性碱水溶液存在下的脂族或芳基脂族基团 和相转移催化剂，温度为50-100℃，时间为10-60分钟。