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2-phenyl-6,7-dimethoxy-3-methyl-3,4-dihydro-2H-1,3-benzothiazine | 124282-03-7

中文名称
——
中文别名
——
英文名称
2-phenyl-6,7-dimethoxy-3-methyl-3,4-dihydro-2H-1,3-benzothiazine
英文别名
6,7-dimethoxy-3-methyl-2-phenyl-3,4-dihydro-2H-1,3-benzothiazine;6,7-Dimethoxy-3-methyl-2-phenyl-2,4-dihydro-1,3-benzothiazine
2-phenyl-6,7-dimethoxy-3-methyl-3,4-dihydro-2H-1,3-benzothiazine化学式
CAS
124282-03-7
化学式
C17H19NO2S
mdl
——
分子量
301.409
InChiKey
NEOMGLZWXLGHSL-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    3.6
  • 重原子数:
    21
  • 可旋转键数:
    3
  • 环数:
    3.0
  • sp3杂化的碳原子比例:
    0.29
  • 拓扑面积:
    47
  • 氢给体数:
    0
  • 氢受体数:
    4

上下游信息

  • 上游原料
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

  • 作为反应物:
    描述:
    2-phenyl-6,7-dimethoxy-3-methyl-3,4-dihydro-2H-1,3-benzothiazinesodium periodate 作用下, 以 甲醇 为溶剂, 反应 1.0h, 以44%的产率得到5,6-Dimethoxy-2-methyl-2,3-dihydro-benzo[d]isothiazole 1-oxide
    参考文献:
    名称:
    通过2-芳基和4-芳基-3,4-二氢-2H-1,3-苯并噻嗪的氧化环收缩合成1,2-苯并噻唑
    摘要:
    6,7-二甲氧基-2-芳基-3,4-二氢-2H-1,3-苯并噻嗪(1a-e)的高碘酸钠氧化得到5,6-二甲氧基-1,2-苯并噻唑(4)。N-取代的类似物(6a-c)和后者的4-芳基异构体(11a,b)提供了2-取代的1,2-苯并噻唑烷1-氧化物(7a-c)及其3-芳基类似物(12a, b)分别。观察到的1,3-苯并噻嗪向1,2-苯并噻唑并向1,2-苯并噻唑烷的转化是3,4-二氢-1,3-苯并噻嗪的新环转化反应,代表了1的合成新途径,2-苯并噻唑及其氢化衍生物。
    DOI:
    10.1016/s0040-4020(01)80102-2
  • 作为产物:
    参考文献:
    名称:
    Expected and unexpected reactions of 1,3-benzothiazine derivatives, II. Formation of isomeric 5,6-dihydro-1,5-benzothiazocines
    摘要:
    A method for the synthesis of medium-sized 1,5-benzothiazocines by ring enlargement of 1,3-benzothiazines has been developed. When N-alkyl-1,3-benzothiazines were reacted with dimethyl acetylenedicarboxylate in acetonitrile at room temperature, regioisomeric 5.6-dihydro-2H-1,5-benzothiazocines and 5,6-dihydro-4H-1.5-benzothiazocines were obtained as novel ring systems. Dimethyl acetylenedicarboxylate could attack either the nitrogen or the sulfur atom of the thiazines. NMR spectroscopic and X-ray crystallographic investigations confirmed the structures of the products. (C) 2010 Elsevier Ltd. All rights reserved.
    DOI:
    10.1016/j.tetlet.2010.11.136
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文献信息

  • 1H and 13C NMR and X-ray studies of 2- and 4-phenyl-6,7-dimethoxy-3methyl-3,4-dihydro-2H-1,3-benzothiazines [1]
    作者:A. Kálman、G.Y. Argay、P. Sohár、J. Szabó、L. Fodor、G. Bernáth
    DOI:10.1016/0022-2860(86)85038-4
    日期:1986.7
    diffraction. Crystals of compound 2 (C 17 H 19 NO 2 S) are monoclinic, space group P2 1 /n, with a = 11.428(1), b = 10.048(1), c = 14.161(2) A, s = 100.00(1)°, Z = 4, D c = 1.247 g cm −3 . Crystals of 6 are orthorhombic, space group P 2 1 2 1 2 1 with a = 7.068(1), b = 10.857(1), c = 20.343(1) A, Z = 4, D c = 1.247 g cm −3 . The structures are refined to R = 0.041 for 2728 reflections of 2 and R = 0.039
    摘要 2-和4-苯基-6,7-二甲氧基-3-甲基-3,4-二氢-2 H -1,3-苯并噻嗪 ( 2,6 ) 的立体化学已通过 1 H, 13 C NMR 进行了研究。光谱和 X 射线衍射。化合物 2 (C 17 H 19 NO 2 S) 的晶体为单斜晶系,空间群 P2 1 /n,a = 11.428(1), b = 10.048(1), c = 14.161(2) A, s = 100.00( 1)°,Z = 4,D c = 1.247 g cm -3 。晶体 6 是斜方晶系,空间群 P 2 1 2 1 2 1 a = 7.068(1), b = 10.857(1), c = 20.343(1) A, Z = 4, D c = 1.247 g cm -3 . 对于 2 的 2728 次反射,结构被细化为 R = 0.041,对于 6 的 1671 次反射,R = 0.039。结果明确表明,
  • Expected and unexpected reactions of 1,3-benzothiazine derivatives, II. Formation of isomeric 5,6-dihydro-1,5-benzothiazocines
    作者:Lajos Fodor、Péter Csomós、Antal Csámpai、Pál Sohár、Tamás Holczbauer、Alajos Kálmán
    DOI:10.1016/j.tetlet.2010.11.136
    日期:2011.2
    A method for the synthesis of medium-sized 1,5-benzothiazocines by ring enlargement of 1,3-benzothiazines has been developed. When N-alkyl-1,3-benzothiazines were reacted with dimethyl acetylenedicarboxylate in acetonitrile at room temperature, regioisomeric 5.6-dihydro-2H-1,5-benzothiazocines and 5,6-dihydro-4H-1.5-benzothiazocines were obtained as novel ring systems. Dimethyl acetylenedicarboxylate could attack either the nitrogen or the sulfur atom of the thiazines. NMR spectroscopic and X-ray crystallographic investigations confirmed the structures of the products. (C) 2010 Elsevier Ltd. All rights reserved.
  • Synthesis of 1,2-benzisothiazoles by the oxidative ring contraction of 2-aryl- and 4-aryl-3,4-dihydro-2H-1,3-benzothiazines
    作者:János Szabó、Erzsébet Szűcs、Lajos Fodor、Gábor Bernáth、Pál Sohár
    DOI:10.1016/s0040-4020(01)80102-2
    日期:1989.1
    4-aryl isomers of the latter (11a, b) furnished 2-substituted 1,2-benzisothiazolidine 1-oxides (7a-c) and their 3-aryl analogues (12a, b), respectively. The observed conversions of the 1,3-benzothiazines to 1,2-benzisothiazole and to 1,2-benzisothiazolidines are new ring transformation reactions of 3,4-dihydro-1,3-benzothiazines, representing a new route for the synthesis of 1,2-benzisothiazoles and
    6,7-二甲氧基-2-芳基-3,4-二氢-2H-1,3-苯并噻嗪(1a-e)的高碘酸钠氧化得到5,6-二甲氧基-1,2-苯并噻唑(4)。N-取代的类似物(6a-c)和后者的4-芳基异构体(11a,b)提供了2-取代的1,2-苯并噻唑烷1-氧化物(7a-c)及其3-芳基类似物(12a, b)分别。观察到的1,3-苯并噻嗪向1,2-苯并噻唑并向1,2-苯并噻唑烷的转化是3,4-二氢-1,3-苯并噻嗪的新环转化反应,代表了1的合成新途径,2-苯并噻唑及其氢化衍生物。
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